Meaning of the word devices

a device for amplifying or transmitting sound

device that enables something to be used in a way different from that for which it was intended or makes different pieces of apparatus compatible

a device injects fuel into a hot exhaust for extra thrust

a device that causes material to gather into rounded balls

a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight

a device that signals the occurrence of some undesirable event

a device or control that is very useful for a particular job

a device for applying a substance

a short-handled device with a globe containing a sponge; used for sprinkling holy water

a navigational device that automatically keeps ships or planes or spacecraft on a steady course

something used to lure fish or other animals into danger so they can be trapped or killed

a device for keeping the score in a game of billiards

an outdoor device that supplies food for wild birds

a device that produces a current of air

has V-shaped notch for pulling off boots

a device that measures chemicals (especially the alcohol content) in a person’s expired breath

a device that facilitates breathing in cases of respiratory failure

any of various devices in which air or some other gas is bubbled through a liquid

a cushion-like device that reduces shock due to an impact

a device that launches aircraft from a warship

a device for charging or recharging batteries

a device (as an earring, sunglasses, microphone etc.) that is attached by clips

a flat device with narrow pointed teeth on one edge; disentangles or arranges hair

device used for an infant to suck or bite on

a device designed to transmit electricity, heat, etc.

an agent or device intended to prevent conception

a device for changing one substance or form or state into another

a device for removing the core from apples

a device for treating injury or disease

a device that crushes something

a device for deciphering codes and ciphers

a device that terminates the flow in a pipe

a device that dampens or moistens something

a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations

a device intended to turn aside the flow of something (water or air or smoke etc)

a device to repair teeth or replace missing teeth

a device used by physician to press a part down or aside

any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner

a device that holds the dies that cut external threads on metal cylinders

(computer science) a device that writes data onto or reads data from a storage medium

device for making large forgings

any flexible device that will return to its original shape when stretched

a device that produces or is powered by electricity

a device that accomplishes its purpose electronically

a device that supplies electrical energy

a device designed to provide exercise for the user

device that bursts with sudden violence from internal energy

a device for creating a current of air by movement of a surface or surfaces

device that removes something from whatever passes through it

a manually operated device for extinguishing small fires

a device that produces a bright light for warning or illumination or identification

a device that generates a gas for the purpose of disinfecting or eradicating pests

a device to convey illuminating gas from the pipe to the gas burner

a device that makes grooves by cutting or punching

a device designed to prevent injury or accidents

device that heats water or supplies warmth to a room

device that transfers heat from one liquid to another without allowing them to mix

a device for holding something

a device having the shape of a horn

a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through

a device produced by pressure on a surface

a device for showing the operating condition of some system

a device that requires skill for proper use

a device that prevents an automotive engine from starting

a device for automatically interrupting an electric current

a device that holds a piece of machine work and guides the tools operating on it

metal device shaped in such a way that when it is inserted into the appropriate lock the lock’s mechanism can be rotated

device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like

a device invented by Edison that gave an impression of movement as an endless loop of film moved continuously over a light source with a rapid shutter; precursor of the modern motion picture

a device (usually metal and ornamental) attached by a hinge to a door

a device worn in a shoe or boot to make the wearer look taller or to correct a shortened leg

a device for lifting heavy loads

a device for lighting or igniting fuel or charges or fires

any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks

(physics) a device that attracts iron and produces a magnetic field

device consisting of a piece of machinery; has moving parts that perform some function

a device that preserves information for retrieval

any of various devices or contrivances that can be used to produce musical tones or sounds

device consisting of an artificial egg left in a nest to induce hens to lay their eggs in it

a device (such as a clapper or bell or horn) used to make a loud noise at a celebration

a device for producing or controlling light

a manually operated device to correct the operation of an automatic device

a device for inserting sheets of paper into a printer or typewriter

a device for peeling vegetables or fruits

a small thin device (of metal or plastic or ivory) used to pluck a stringed instrument

a device that transfers power from an engine (as in a tractor or other motor vehicle) to another piece of equipment (as to a pump or jackhammer)

a pointed instrument that is used to prod into a state of motion

a device that displays words for people to read

a device used for pulling something

device that reflects radiation

a device that when pressed will release part of a mechanism

a device that can be used to control a machine or apparatus from a distance

device for resetting instruments or controls

a device that impede’s something’s motion

(computer science) a device that forwards data packets between computer networks

device consisting of the parts on which something can slide along

a device used for scratching

a device used for easing the foot into a shoe

a wooden or metal device that is inserted into a shoe to preserve its shape when it is not being worn

device that resembles a spiked walking stick but the top opens into a seat

a device that shreds documents (usually in order to prevent the wrong people from reading them)

a device used to send signals

a device to help you walk on deep snow; a lightweight frame shaped like a racquet is strengthened with cross pieces and contains a network of thongs; one is worn on each foot

a device for making soundings

any device serving as a source of visible electromagnetic radiation

a device for making something stable

a device for removing stems from fruit (as from grapes or apples)

a device for straightening

a device designed to provide additional strength

a sharp pointed device attached to the cartridge of a record player

a cup-shaped device (made of rubber, glass, or plastic) that produces a partial vacuum; used to adhere or draw something to a surface

any device that bears the weight of another thing

a device that causes tobacco leaves or fruit or hides to sweat

a device used in photography to synchronize the peak of a flash with the opening of the camera shutter

any of various devices for reducing slack (as in a sewing machine) or taking up motion (as in a loom)

a device for teasing wool

a device resembling a sling that is used in various primitive societies to propel a dart or spear

a device for emptying a cask by tilting it without disturbing the dregs

any of various devices for taking hold of objects; usually have two hinged legs with handles above and pointed hooks below

a device regarded as providing amusement

a device in which something (usually an animal) can be caught and penned

a device that activates or releases or causes something to happen

device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone

a device that puts out a substance in the form of a vapor (especially for medicinal inhalation)

a device (such as a fan) that introduces fresh air or expels foul air

device consisting of a corrugated surface to scrub clothes on

a device for cooling and dispensing drinking water

a storage device consisting of acoustic delay lines

the operating part that transmits power to a mechanism

a mechanism that puts something into automatic action

an airfoil that controls lateral motion

a safety restraint in an automobile; the bag inflates on collision and prevents the driver or passenger from being thrown forward

a small parachute or articulated flap to reduce the speed of an aircraft

a filter that removes dust from the air that passes through it

an instrument that performs analyses

metal supports for logs in a fireplace

an elephant goad with a sharp spike and a hook

an indicator that announces which electrical circuit has been active (as on a telephone switchboard)

an electronic device that answers the telephone and records messages

an electrical device that sends or receives radio or television signals

a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus

a support for the arch of the foot

a restraint that slows airplanes as they land on the flight deck of an aircraft carrier

a group of machine parts that fit together to form a self-contained unit

an electrical device for attenuating the strength of an electrical signal

an optical device for focussing a camera or other instrument automatically

a mechanism that can move automatically

a device on an automobile for making a warning noise

a data storage device that is not the main memory of a computer

the center around which something rotates

a support that you can lean against while sitting

a board used to support the back of someone or something

something forming a back that is added for strengthening

a long-handled scratcher for scratching your back

layer of sand or gravel used to expose sewage effluent to air and the action of microorganisms

a machine for putting objects or substances into bags

an electrical device for starting and regulating fluorescent and discharge lamps

one of a number of closely spaced supports for a railing

a restraint put around something to hold it together

a horizontal rod that serves as a support for gymnasts as they perform exercises

a magnet in the form of a bar with magnetic poles at each end

a musical instrument that makes music by rotation of a cylinder studded with pegs

a support or foundation

the member with the lowest range of a family of musical instruments

a device that produces electricity; may have several primary or secondary cells arranged in parallel or series

a rotating support placed between moving parts to allow them to move easily

any wall supporting a floor or the roof of a building

any of 4 vertical supports at the corners of a bedstead

an electronic device that generates a series of beeps when the person carrying it is being paged

a hollow device made of metal that makes a ringing sound when struck

a mechanical device that blows a strong current of air; used to make a fire burn more fiercely or to sound a musical instrument

a handle or cord that is pulled to ring a doorbell or a servant’s bell etc.

a refractory-lined furnace used to convert pig iron into steel by the Bessemer process

a strip consisting of two metals that bends with a rise in temperature

an optical device for obtaining interference fringes

a device for imitating a birdcall

a removable dental appliance that is worn in the palate for diagnostic or therapeutic purposes

the part of the skate that slides on the ice

an explosive device fused to explode under specific conditions

a support placed at the end of a row of books to keep them upright (on a shelf or table)

a structural member used to stiffen a framework

an appliance that corrects dental irregularities

a support that steadies or strengthens something else

a support projecting from a wall (as to hold a shelf)

a restraint used to slow or stop a vehicle

anything that slows or hinders a process

one of the pads that apply friction to both sides of the brake disk

a restraint provided when the brake linings are moved hydraulically against the brake drum to retard the wheel’s rotation

large metal container in which coal or charcoal is burned; warms people who must stay outside for long times

a wooden support that holds the strings up

conducts current between rotating and stationary parts of a generator or motor

(computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system

a warning device that is tripped off by the occurrence of a burglary

an electrical conductor that makes a common connection between several circuits

a signaling device that makes a buzzing sound

a conductor for transmitting electrical or optical signals or electric power

a small machine that is used for mathematical calculations

a machine that smooths or glazes paper or cloth by pressing it between plates or passing it through rollers

a musical instrument consisting of a series of steam whistles played from a keyboard

an optical device consisting of an attachment that enables an observer to view simultaneously the image and a drawing surface for sketching it

an electrical device characterized by its capacity to store an electric charge

a machine part that carries something else

a mechanism in a firearm that ejects the empty shell case after firing

a mechanism in a firearm that pulls an empty shell case out of the chamber and passes it to the ejector

an unattended machine (outside some banks) that dispenses money when a personal coded card is used

a converter that uses a platinum-iridium catalyst to oxidize pollutants and carbon monoxide into carbon dioxide and water; an antipollution device on an automotive exhaust system

a restraint that checks the motion of something

an instrument or substance used to destroy tissue for medical reasons (eg removal of a wart) by burning it with a hot iron or an electric current or a caustic or by freezing it

a drive that reads a compact disc and that is connected to an audio system

a drive that is connected to a computer and on which a CD-ROM can be `played’

a device that delivers an electric current as the result of a chemical reaction

a contraceptive device consisting of a small thimble-shaped cup that is placed over the uterine cervix to prevent the entrance of spermatozoa

anything that acts as a restraint

a holding device consisting of adjustable jaws that center a workpiece in a lathe or center a tool in a drill

bait consisting of chopped fish and fish oils that are dumped overboard to attract fish

a lighter for cigars or cigarettes

an electrical device that provides a path for electrical current to flow

a device (generally used by carpenters) that holds things firmly together

any mechanism of geared wheels that is driven by a coiled spring; resembles the works of a mechanical clock

optical device used to follow the path of a celestial body and reflect its light into a telescope; has a movable and a fixed mirror

filter (usually of paper) that passes the coffee and retains the coffee grounds

a contraceptive device placed inside a woman’s womb

optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam

a machine that separates and straightens the fibers of cotton or wool

a machine for performing calculations automatically

a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard

a machine with a large revolving drum in which cement is mixed with other materials to make concrete

a mechanism that controls the operation of a machine

electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices

a space heater that transfers heat to the surrounding air by convection

a mechanism for keeping something cool

a light insulated conductor for household use

a machine that is used to put corks in bottles

a machine that separates the seeds from raw cotton fibers

lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis

(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth

a square comb with rows of small teeth; used to curry horses

(computer science) indicator consisting of a movable spot of light (an icon) on a visual display; moving it allows the user to point to commands or screen positions

damper consisting of a small felted block that drops onto a piano string to stop its vibration

a mechanical damper; the vibrating part is attached to a piston that moves in a chamber filled with liquid

converter for changing information from one code to another

a machine that converts a coded text into ordinary language

an electronic device that administers an electric shock of preset voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation

heater that removes ice or frost (as from a windshield or a refrigerator or the wings of an airplane)

a mechanism that automatically delays the release of a camera shutter for a fixed period of time so that the photographer can appear in the picture

heater that removes mist from the windshield of a car

a dental appliance that artificially replaces missing teeth

a mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive

the circular graduated indicator on various measuring instruments

a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix

optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum

optical device that distributes the light of a lamp evenly

computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it

an electronic device that represents information in visual form

(computer science) an electronic device that converts information in memory to video output to a display

electrical device that distributes voltage to the spark plugs of a gasoline engine in the order of the firing sequence

(computer science) an electronic device that must be attached to a computer in order for it to use protected software

an electronic device that doubles the voltage or the frequency of an input signal

an instrument used by a draftsman in making drawings

a filter in a sink drain; traps debris but passes water

a mechanism by which force or power is transmitted in a machine

mechanism that transmits power from the engine to the driving wheels of a motor vehicle

converter that converts alternating current into direct current or vice versa

a fan run by an electric motor

a conductor used to make electrical contact with some part of a circuit

electrical device used for etching by electrolytic means

a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet

(telecommunication) converter for converting a signal from one frequency to another

a musical instrument that generates sounds electronically

electrical device that produces a high voltage by building up a charge of static electricity

lifting device consisting of a platform or cage that is raised and lowered mechanically in a vertical shaft in order to move people from one floor to another in a building

the airfoil on the tailplane of an aircraft that makes it ascend or descend

an instrument or machine that is used in warfare, such as a battering ram, catapult, artillery piece, etc.

an exercise device resembling a stationary bike

a fan that moves air out of an enclosure

a drive with its own power supply and fan mounted outside the computer system enclosure and connected to the computer by a cable

an instrument for extracting tight-fitting components

a mechanism capable of returning to a safe state in case there is a failure or malfunction

a machine used in farming

restraint that attaches to something or holds something in place

a low metal guard to confine falling coals to a hearth

a magnet that provides a magnetic field in a dynamo or electric motor

(dentistry) a dental appliance consisting of any of various substances (as metal or plastic) inserted into a prepared cavity in a tooth

a mechanism for advancing film in a camera or projector

an electrical device that alters the frequency spectrum of signals passing through it

filter consisting of a layer of sand or gravel for filtering water

a stabilizer on a ship that resembles the fin of a fish

optical device that helps a user to find the target of interest

a comb with teeth set close together

an alarm that is tripped off by fire or smoke

tongs for taking hold of burning coals

(angling) any bright artificial bait consisting of plastic or metal mounted with hooks and trimmed with feathers

a movable airfoil that is part of an aircraft wing; used to increase lift or drag

an electrical device that automatically turns a lamp on and off (as for an advertising display)

an applicator for applying flux (as in soldering)

a trap for catching flies

a warning device consisting of a horn that generates a loud low tone

a support resembling a pedal extremity

a place providing support for the foot in standing or climbing

a machine that automatically stamps letters or packages passing through it and computes the total charge

a device consisting of a container of fuel and two explosive charges; the first charge bursts open the fuel container at a predetermined height and spreads the fuel in a cloud that mixes with atmospheric oxygen; the second charge detonates the cloud which creates an enormous blast wave and incinerates whatever is below

a filter in the fuel line that screens out dirt and rust particles from the fuel

an indicator of the amount of fuel remaining in a vehicle

any igniter that is used to initiate the burning of a propellant

an electrical device that can interrupt the flow of electrical current when it is overloaded

a colored flare used as a warning signal by trucks and trains

appliances collectively

restraint put into a person’s mouth to prevent speaking or shouting

a heater that burns gas for heat

a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle)

an electronic device for producing a signal voltage

an appliance that allows an object (such as a ship’s compass) to remain horizontal even as its support tips

indicator provided by the stationary arm whose shadow indicates the time on the sundial

bait scattered on the water to attract fish

a plectrum used to pluck a guitar

a stabilizer consisting of a heavy gyroscope that spins on a vertical axis; reduces side-to-side rolling of a ship or plane

a hand-held electric blower that can blow warm air onto the hair; used for styling hair

a support for the hand

anything from which something can be hung

a support consisting of an arrangement of straps for holding something to the body (especially one supporting a person suspended from a parachute)

a pair of curved vertical supports for a lampshade

the stationary support in a machine or power tool that supports and drives a revolving part (as a chuck or the spindle on a lathe)

a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person

an electronic device that amplifies sound and is worn to compensate for poor hearing

heater consisting of electrical heating elements contained in a flexible pad

a metal conductor specially designed to conduct (and radiate) heat

lifting device for raising heavy or cumbersome objects

a holding device

the mechanism in a guided missile that guides it toward its objective

a machine used for picking hops

the horizontal airfoil of an aircraft’s tail assembly that is fixed and to which the elevator is hinged

an alarm device that makes a loud warning sound

a noisemaker (as at parties or games) that makes a loud noise when you blow through it

a mechanism operated by the resistance offered or the pressure transmitted when a liquid is forced through a small opening or tube

tongs for lifting blocks of ice

the mechanism that ignites the fuel in an internal-combustion engine

a key that operates the ignition switch of an automotive engine

(dentistry) an imprint of the teeth and gums in wax or plaster

an explosive device that is improvised

an electrical device (typically a conducting coil) that introduces inductance into a circuit

a contrivance for injecting (e.g., water into the boiler of a steam engine or particles into an accelerator etc.)

an instrument designed and used to take the life of a condemned person

an instrument designed and used to punish a condemned person

a drive mounted inside of a computer

contraceptive device consisting of a piece of bent plastic or metal that is inserted through the vagina into the uterus

an electrical device consisting of a connector socket designed for the insertion of a plug

holding device consisting of one or both of the opposing parts of a tool that close to hold an object

a small lyre-shaped musical instrument that is placed between the teeth and played by twanging a wire tongue while changing the shape of the mouth cavity

optical device consisting of a transparent cell with two electrodes between two polarizing media; passes light only if the two planes of polarization are parallel; used as a high-speed shutter or to modulate a laser beam

a musical instrument that is played by means of a keyboard

an artificial source of visible illumination

an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light

holding device shaped like a human foot that is used to fashion or repair shoes

key for raising or drawing back a latch or opening an outside door

restraint consisting of a rope (or light chain) used to restrain an animal

one of the supports for a piece of furniture

a transparent optical device used to converge or diverge transmitted light and to form images

indicator that establishes the horizontal when a bubble is centered in a tube of liquid

any device serving as a source of illumination

a transparent filter that reduces the light (or some wavelengths of the light) passing through it

a metallic conductor that is attached to a high point and leads to the ground; protects the building from destruction by lightning

electrical device to which electrical power is delivered

trap for catching lobsters

a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key

a mechanism that detonates the charge of a gun

an electronic device that performs an elementary logic operation

machines or machine systems collectively

a powered machine for cutting or shaping or finishing metals or other materials

(computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored

a slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth’s magnetic pole

memory device consisting of a long thin plastic strip coated with iron oxide; used to record audio or video signals or to store computer information

a trap for catching trespassers

lighter consisting of a thin piece of wood or cardboard tipped with combustible chemical; ignites with friction

a burning piece of wood or cardboard

instrument that shows the extent or amount or quantity or degree of something

mechanism consisting of a device that works on mechanical principles

instrument used in the practice of medicine

a cone-shaped acoustic device held to the mouth to intensify and direct the human voice

an electronic memory device

detector that gives a signal when it detects the presence of metal; used to detect the presence of stray bits of metal in food products or to find buried metal

machine consisting of a suction apparatus for milking cows mechanically

explosive device that explodes on contact; designed to destroy vehicles or ships or to kill or maim personnel

detector consisting of an electromagnetic device; used to locate explosive mines

polished surface that forms images by reflecting light

modern convenience; the appliances and conveniences characteristic of a modern house

a large dose of estrogen taken orally within 24 to 72 hours after intercourse; prevents implantation of a fertilized ovum and so acts as a contraceptive; commonly used after rape or incest

machine that converts other forms of energy into mechanical energy and so imparts motion

a hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad; on the bottom of the device is a ball that rolls on the surface of the pad

a trap for catching mice

an acoustic device; the part of a telephone into which a person speaks

a device that can interleave two or more activities

produces music by means of pins on a revolving cylinder that strike the tuned teeth of a comb-like metal plate

a device used to soften the tone of a musical instrument

a leather or wire restraint that fits over an animal’s snout (especially a dog’s nose and jaws) and prevents it from eating or biting

an instrument used for navigating

a trap made of netting to catch fish or birds or insects

optical device that produces plane-polarized light

a filter that removes impurities from the oil used to lubricate an internal-combustion engine

heater that burns oil (as kerosine) for heating or cooking

a disk coated with plastic that can store digital data as tiny pits etched in the surface; is read with a laser that scans the surface

an instrument designed to aid vision

a stabilizer for a canoe; spars attach to a shaped log or float parallel to the hull

a breathing device that is placed over the mouth and nose; supplies oxygen from an attached storage tank

an implanted electronic device that takes over the function of the natural cardiac pacemaker

a sheet or blanket (either dry or wet) to wrap around the body for its therapeutic effect

a cream that cleanses and tones the skin

a brush used as an applicator (to apply paint)

a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam

magnet made of a substance whose magnetization is proportional to the strength of the magnetic field applied to it

key that secures entrance everywhere

a machine for laying pavement

support consisting of a branch or rod that serves as a resting place (especially for a bird)

a musical instrument in which the sound is produced by one object striking another

a magnet that retains its magnetism after being removed from a magnetic field

a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy

a lightweight consumer electronic device that looks like a hand-held computer but instead performs specific tasks; can serve as a diary or a personal database or a telephone or an alarm clock etc.

an explosive device used to break down a gate or wall

a stylus that formerly made sound by following a groove in a phonograph record

a transducer used to detect and measure light and other radiations

a bank of keys on a musical instrument

anything with restorative powers

a support for two adjacent bridge spans

(architecture) a vertical supporting structure (as a portion of wall between two doors or windows)

a machine that drives piling into the ground

a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception

a cast-iron or steel block for supporting a journal or bearing

indicator consisting of a light to indicate whether power is on or a motor is in operation

a trap in the form of a concealed hole

an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome

an instrument (usually driven by a computer) for drawing graphs or pictures

an electrical device with two or three pins that is inserted in a socket to make an electrical connection

a steel or beryllium sphere containing plutonium 239 that triggers nuclear fission when compressed by explosives

a small comb suitable for carrying in a pocket

an indicator as on a dial

an optical device used to measure the rotation of the plane of vibration of polarized light

trap consisting of an arrangement of nets directing fish into an enclosure

a machine for excavating

a tool driven by a motor

removes dust particles from gases by electrostatic precipitation

any machine that exerts pressure to form or shape or cut materials or extract liquids or compress solids

a machine used for printing

a machine that prints

optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image

an optical device for projecting a beam of light

corrective consisting of a replacement for a part of the body

a device (as a decorative loop of cord or fabric) for holding or drawing something back

a chain (usually with a handle at the end) that is pulled in order to operate some mechanism (e.g. to flush a toilet)

a large fan consisting of a frame covered with canvas that is suspended from the ceiling; used in India for circulating air in a room

a storage device that handles data so that the next item to be retrieved is the item most recently stored (LIFO)

a support for displaying various articles

a mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is transferred from the fluid through the honeycomb to the airstream that is created either by the motion of the vehicle or by a fan

heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings

(computer science) a virtual drive that is created by setting aside part of the random-access memory to use as if it were a group of sectors

a trap for catching rats

an electrical device used to introduce reactance into a circuit

an electronic device the displays information is a visual form

a storage device on which information (sounds or images) have been recorded

machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically

electrical device that transforms alternating into direct current

(computer science) memory device that is the part of computer memory that has a specific address and that is used to hold information of a specific kind

electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit

(electronics) electronic device that amplifies a signal before transmitting it again

an electrical device that resists the flow of electrical current

a breathing device for administering long-term artificial respiration

a support on which things can be put

a breathing apparatus used for resuscitation by forcing oxygen into the lungs of a person who has undergone asphyxia or arrest of respiration

a dental appliance that holds teeth (or a prosthesis) in position after orthodontic treatment

support resembling the rib of an animal

a machine for driving rivets

optical device that produces plane-polarized ultraviolet light

a curved support that permits the supported object to rock to and fro

a mechanism that rotates

the long airfoil that rotates to provide the lift that supports a helicopter in the air

a narrow band of elastic rubber used to hold things (such as papers) together

a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes

an undecorated arch that is included in order to strengthen or support a construction

belt attaching you to some object as a restraint in order to prevent you from getting hurt

guard consisting of a locking device that prevents a weapon from being fired

an indicator having a graduated sequence of marks

an electronic device that generates a digital representation of an image for data input to a computer

an instrument used by scientists

restraint consisting of a canvas covered frame that floats behind a vessel; prevents drifting or maintains the heading into a wind

a small explosive device (resembling a firecracker) that is used underwater in order to frighten mammals away from fishing grounds

any support where you can sit (especially the part of a chair or bench etc. on which you sit)

an electrical device that sets off an alarm when someone tries to break in

(trademark) a self-balancing personal transportation device with two wheels; can operate in any level pedestrian environment

a machine that automatically provides a supply of some material

a conductor made with semiconducting material

a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)

a support that consists of a horizontal surface for holding objects

a mechanical damper; absorbs energy of sudden impulses

an explosive device concealed inside the heel and sole of a shoe

a conductor having low resistance in parallel with another device to divert a fraction of the current

a tubular acoustic device inserted in the exhaust system that is designed to reduce noise

a machine that simulates an environment for the purpose of training or research

an acoustic device producing a loud often wailing sound as a signal or warning

narrow wood or metal or plastic runners used in pairs for gliding over snow

acoustic device consisting of two paddles hinged together; used by an actor to make a loud noise without inflicting injury when striking someone

a machine for cutting; usually with a revolving blade

a machine that is operated by the insertion of a coin in a slot

a trap for birds or small mammals; often has a slip noose

breathing device consisting of a bent tube fitting into a swimmer’s mouth and extending above the surface; allows swimmer to breathe while face down in the water

a machine that removes snow by scooping it up and throwing it forcefully through a chute

electrical device consisting of a large array of connected solar cells

a concave mirror that concentrates the rays of the sun; can produce high temperatures

a heater that makes direct use of solar energy

a coil of wire around an iron core; becomes a magnet when current passes through the coil

an instrument that uses the differential transmission and reflection of ultrasonic waves in order to provide an image of a bodily organ

a machine for sorting things (such as punched cards or letters) into classes

heater consisting of a self-contained (usually portable) unit to warm a room

electrical device to reduce sparking when electrical contacts are opened or closed

electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark

a trumpet-shaped acoustic device to intensify and direct the human voice; formerly held to the ear by a hard-of-hearing person

a contraceptive agent that kills spermatozoa

any holding device consisting of a rigid, sharp-pointed object

a hinged airfoil on the upper surface of an aircraft wing that is raised to reduce lift and increase drag

an airfoil mounted on the rear of a car to reduce lift at high speeds

support consisting of a radial member of a wheel joining the hub to the rim

an applicator resembling a gun for applying liquid substances (as paint) in the form of a spray

a metal elastic device that returns to its shape or position when pushed or pulled or pressed

a sharp prod fixed to a rider’s heel and used to urge a horse onward

airfoil consisting of a device for stabilizing an aircraft

a rigid metal bar between the front suspensions and between the rear suspensions of cars and trucks; serves to stabilize the chassis

machine consisting of a heavy bar that moves vertically for pounding or crushing ores

a hand-held machine for driving staples home

a machine that inserts staples into sheets of paper in order to fasten them together

a trap made of steel with a strong spring and sharp toothlike projections to hold the prey

mechanism consisting of a system of rods and levers connected to the front wheels of a motor vehicle; the steering gear pushes it left or right which swivels the front wheels, causing the vehicle to turn

a mechanism by which something is steered (especially a motor vehicle)

support consisting of a place to rest the foot while ascending or descending a stairway

an optical device for viewing stereoscopic photographs

support consisting of metal loops into which rider’s feet go

the handle of a handgun or the butt end of a rifle or shotgun or part of the support of a machine gun or artillery gun

a dummy pigeon used to decoy others

any heating apparatus

a filter to retain larger pieces while smaller pieces and liquids pass through

a musical instrument in which taut strings provide the source of sound

support that is a constituent part of any structure or building

an electrical device for suppressing unwanted currents

an instrument used by surveyors

an electronic device in a computer that issues a steady high-frequency signal that synchronizes all the internal components

support consisting of the movable part of a lathe that slides along the bed in alignment with the headstock and is locked into position to support the free end of the workpiece

a mechanism that transports magnetic tape across the read/write heads of a tape playback/recorder

support holding a football on end and above the ground preparatory to the kickoff

a prompter for television performers

paper impregnated with an indicator for use in chemical tests

a machine for making textiles

a noisemaker that makes a sound like thunder

indicator consisting of a line at the highwater or low-water limits of the tides

a science fiction machine that is supposed to transport people or objects into the past or the future

a thin depressor used to press the tongue down during an examination of the mouth and throat

a small explosive device that is placed on a railroad track and fires when a train runs over it; the sound of the explosion warns the engineer of danger ahead

an explosive device that is set off in an oil well (or a gas well) to start or to increase the flow of oil (or gas)

converter for transmitting and amplifying torque (especially by hydraulic means)

a screening device for traces of explosives; used at airline terminals

an instrument used to make tracings

an electronic device consisting of a rotatable ball in a housing; used to position the cursor and move images on a computer screen

a restraint that is used to teach a horse to amble

an electrical device that converts one form of energy into another

an electrical device by which alternating current of one voltage is changed to another voltage

electrical device designed to receive a specific signal and automatically transmit a specific reply

an exercise device consisting of an endless belt on which a person can walk or jog without changing place

a machine that trims timber

electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

a keyboard for manually entering characters to be printed

any source of illumination that emits ultraviolet radiation

framework that serves as a support for the body of a vehicle

the vertical airfoil in the tail assembly of an aircraft

an optical device for viewing photographic transparencies

a holding device attached to a workbench; has two jaws to hold workpiece firmly in place

a filter to remove impurities from the water supply

a heater and storage tank to supply heated water

a hollow metal conductor that provides a path to guide microwaves; used in radar

any instrument or instrumentality used in fighting or hunting

an intricate trap that entangles or ensnares its victim

an instrument with a handle and a flexible lash that is used for whipping

a revolving mechanism

acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound

lifting device consisting of a horizontal cylinder turned by a crank on which a cable or rope winds

a musical instrument in which the sound is produced by an enclosed column of air that is moved by the breath

one of the horizontal airfoils on either side of the fuselage of an airplane

a metal conductor that carries electricity over a distance

machine that performs dependably under heavy use

the internal mechanism of a device

support consisting of a wooden frame across the shoulders that enables a person to carry buckets hanging from each end

the trademark for a machine that smooths the ice in an ice-skating rink

an electrical device that can injure or kill by means of electric currents

glass fibers spun and massed into bundles resembling wool

a light soil consisting of siliceous diatom remains and often used as a filtering material

a horizontal rod that ballet dancers use as a support as they perform certain exercises

the group of instruments that are played by striking with a hand or object