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- aba
a fabric woven from goat hair and camel hair - aba
a loose sleeveless outer garment made from aba cloth - abacus
a calculator that performs arithmetic functions by manually sliding counters on rods or in grooves - abacus
a tablet placed horizontally on top of the capital of a column as an aid in supporting the architrave - abandoned ship, derelict
a ship abandoned on the high seas - A battery
the battery used to heat the filaments of a vacuum tube - abattis, abatis
a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy - butchery, abattoir, shambles, slaughterhouse
a building where animals are butchered - abaya
(Arabic) a loose black robe from head to toe - Abbe condenser
a condenser having 2 or 3 lenses with wide aperture for use in microscopes - abbey
a monastery ruled by an abbot - abbey
a convent ruled by an abbess - abbey
a church associated with a monastery or convent - Abney level
a surveying instrument consisting of a spirit level and a sighting tube - aborticide, abortifacient, abortion-inducing drug
a drug (or other chemical agent) that causes abortion - abortion pill, mifepristone, RU 486
an abortion-inducing drug (trade name RU 486) developed in France - abrader, abradant
a tool or machine used for wearing down or smoothing or polishing - abrading stone
a primitive stone artifact (usually made of sandstone) used as an abrader - Abstract Expressionism, action painting
a New York school of painting characterized by freely created abstractions - abstraction
an abstract painting - abstractionism, abstract art
an abstract genre of art - abutment
a masonry support that touches and directly receives thrust or pressure of an arch or bridge - abutment arch
an arch supported by an abutment - academic costume
a costume worn on formal occasions by the faculty or students of a university or college - academic gown, academic robe, judge's robe
a gown worn by academics or judges - academy
a learned establishment for the advancement of knowledge - Acapulco gold, Mexican green
a particularly potent variety of marijuana - accelerator, throttle, throttle valve
a valve that regulates the supply of fuel to the engine - accelerator, particle accelerator, atom smasher
a scientific instrument that increases the kinetic energy of charged particles - gun, accelerator, throttle, accelerator pedal, gas pedal, gas
a pedal that controls the throttle valve - accelerometer
an instrument for measuring the acceleration of aircraft or rockets - approach, access
a way of entering or leaving - access, memory access
(computer science) the operation of reading or writing stored information - accessory, appurtenance, supplement, add-on
a supplementary component that improves capability - accessory, accoutrement, accouterment
clothing that is worn or carried, but not part of your main clothing - access road, slip road
a short road giving access to an expressway - accommodating lens implant, accommodating IOL
a lens implant containing a hinge that allows for both near and far vision (thus mimicking the natural lens of a young person) - accommodation
living quarters provided for public convenience - accommodation ladder
(nautical) a portable ladder hung over the side of a vessel to give access to small boats alongside - accordion, piano accordion, squeeze box
a portable box-shaped free-reed instrument - accumulator, accumulator register
(computer science) a register that has a built-in adder that adds an input number to the contents of the register - ace
one of four playing cards in a deck having a single pip on its face - acebutolol, Sectral
an oral beta blocker (trade name Sectral) used in treating hypertension - ACE inhibitor, angiotensin-converting enzyme inhibitor
an antihypertensive drug that blocks the formation of angiotensin II in the kidney, leading to relaxation of the arteries - ace of clubs
the ace in the club suit - ace of diamonds
the ace in the diamond suit - ace of hearts
the ace in the heart suit - ace of spades
the ace in the spade suit - acetaminophen, Datril, Tylenol, Panadol, Phenaphen, Tempra, Anacin III
an analgesic for mild pain but not for inflammation - acetanilide, acetanilid, phenylacetamide
a white crystalline compound used as an analgesic and also as an antipyretic - acetate disk, phonograph recording disk
a disk coated with cellulose acetate - acetate rayon, acetate
a fabric made from fibers of cellulose acetate - acetophenetidin, acetphenetidin, phenacetin
a white crystalline compound used as an analgesic and also as an antipyretic - achromatic lens
a compound lens system that forms an image free from chromatic aberration - acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen
street name for lysergic acid diethylamide - acorn tube
a small vacuum tube - acoustic
a remedy for hearing loss or deafness - acoustic delay line, sonic delay line
a delay line based on the time of propagation of sound waves - acoustic device
a device for amplifying or transmitting sound - acoustic guitar
sound is not amplified by electrical means - acoustic modem
a modem that converts electrical signals to telephone tones and back again - acoustic storage
a storage device consisting of acoustic delay lines - acropolis
the citadel in ancient Greek towns - acrylic
a synthetic fabric - acrylic, acrylic paint
used especially by artists - Actifed
trade name for a drug containing an antihistamine and a decongestant - actinometer
an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect) - actinomycin
any of various red antibiotics isolated from soil bacteria - action, action mechanism
the operating part that transmits power to a mechanism - active matrix screen
a type of LCD screen used for some portable computers - active placebo
a placebo used in experimental tests of a drug that has noticeable side effects - actuator
a mechanism that puts something into automatic action - acyclovir, Zovirax
an oral antiviral drug (trade name Zovirax) used to treat genital herpes - go, Adam, ecstasy, XTC, disco biscuit, cristal, X, hug drug
street names for methylenedioxymethamphetamine - adapter, adaptor
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 - adder
a machine that adds numbers - adding machine, totalizer, totaliser
a calculator that performs simple arithmetic functions - addition, add-on, improver
a component that is added to something to improve it - additive
something added to enhance food or gasoline or paint or medicine - addressing machine, Addressograph
a printer that automatically prints addresses on letters for mailing - adhesive bandage
bandage consisting of a medical dressing of plain absorbent gauze held in place by a plastic or fabric tape coated with adhesive - adhesive tape
tape coated with adhesive - adit
a nearly horizontal passage from the surface into a mine - adjoining room
a hotel room that shares a wall with another hotel room - adjustable wrench, adjustable spanner
can be changed to different settings - adjuvant
an additive that enhances the effectiveness of medical treatment - admixture, intermixture
an additional ingredient that is added by mixing with the base - adobe, adobe brick
sun-dried brick - adornment
a decoration of color or interest that is added to relieve plainness - adrenergic, adrenergic drug
drug that has the effects of epinephrine - adumbration
a sketchy or imperfect or faint representation - adz, adze
an edge tool used to cut and shape wood - aeolian harp, aeolian lyre, wind harp
a harp having strings tuned in unison - aerator
an apparatus for exposing something to the air (as sewage) - aerial ladder
mechanically extendible ladder - aerial torpedo
a torpedo designed to be launched from an airplane - aerosol, aerosol container, aerosol can, aerosol bomb, spray can
a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas) - Aertex
a trademark for a loosely woven cotton fabric that is used to make shirts and underwear - afghan
a blanket knitted or crocheted in strips or squares - Afro-wig
a wig that gives the appearance of an Afro hairdo - afterburner
a device injects fuel into a hot exhaust for extra thrust - afterdeck
a deck abaft of midships - after-shave, after-shave lotion
a fragrant lotion for a man's face after shaving - afterthought
an addition that was not included in the original plan - agal
a cord (usually of goat's hair) that Arabs (especially Bedouins) wind around their heads to hold down the kaffiyeh - agateware
pottery that is veined and mottled to resemble agate - agglomerator
a device that causes material to gather into rounded balls - aglet, aiglet, aiguilette
ornamental tagged cord or braid on the shoulder of a uniform - aglet, aiglet
metal or plastic sheath over the end of a shoelace or ribbon - agonist
(biochemistry) a drug that can combine with a receptor on a cell to produce a physiological reaction - agora, public square
a place of assembly for the people in ancient Greece - aigrette, aigret
a long plume (especially one of egret feathers) worn on a hat or a piece of jewelry in the shape of a plume - aileron
an airfoil that controls lateral motion - air bag
a safety restraint in an automobile - air base, air station
a base for military aircraft - airbrake
a vehicular brake that operates by compressed air - airbrake, dive brake
a small parachute or articulated flap to reduce the speed of an aircraft - airbrush
an atomizer to spray paint by means of compressed air - airbus
a subsonic jet airliner operated over short distances - air compressor
a compressor that takes in air at atmospheric pressure and delivers it at a higher pressure - air conditioner, air conditioning
a system that keeps air cool and dry - aircraft
a vehicle that can fly - carrier, aircraft carrier, flattop, attack aircraft carrier
a large warship that carries planes and has a long flat deck for takeoffs and landings - aircraft engine
the engine that powers and aircraft - air cushion, inflatable cushion
a cushion usually made of rubber or plastic that can be inflated - air cushion, air spring
a mechanical device using confined air to absorb the shock of motion - airdock, hangar, repair shed
a large structure at an airport where aircraft can be stored and maintained - field, airfield, landing field, flying field
a place where planes take off and land - air filter, air cleaner
a filter that removes dust from the air that passes through it - airfoil, aerofoil, control surface, surface
a device that provides reactive force when in motion relative to the surrounding air - airframe
the framework and covering of an airplane or rocket (excluding the engines) - air gun, airgun, air rifle
a gun that propels a projectile by compressed air - air hammer, jackhammer, pneumatic hammer
a hammer driven by compressed air - air hole
a hole that allows the passage of air - air horn
air intake of a carburetor - air horn
a pneumatic horn - airing cupboard
a warm cupboard where you put newly washed clothes until they are completely dry - air-intake
a duct that admits air to be mixed with fuel - airline, airline business, airway
a commercial enterprise that provides scheduled flights for passengers - airline, air hose
a hose that carries air under pressure - airliner
a commercial airplane that carries passengers - airlock, air lock
a chamber that provides access to space where air is under pressure - airmailer
a mailer for airmail - air mattress
a mattress that can be stored flat and inflated for use - airway, air passage, air duct
a duct that provides ventilation (as in mines) - airplane, aeroplane, plane
an aircraft that has a fixed wing and is powered by propellers or jets - airplane propeller, airscrew, prop
a propeller that rotates to push against air - airport, airdrome, aerodrome, drome
an airfield equipped with control tower and hangars as well as accommodations for passengers and cargo - air pump, vacuum pump
a pump that moves air in or out of something - air search radar
a shipboard radar that searches for aircraft - air shaft, air well
a shaft for ventilation - airship, dirigible
a steerable self-propelled aircraft - strip, airstrip, flight strip, landing strip
an airfield without normal airport facilities - air terminal, airport terminal
a terminal that serves air travelers or air freight - air-to-air missile
a missile designed to be launched from one airplane at another - air-to-ground missile, air-to-surface missile
a missile designed to be launched from an airplane at a target on the ground - air transportation system
a transportation system for moving passengers or goods by air - aisle, gangway
passageway between seating areas as in an auditorium or passenger vehicle or between areas of shelves of goods as in stores - aisle
part of a church divided laterally from the nave proper by rows of pillars or columns - aisle
a long narrow passage (as in a cave or woods) - Aladdin's lamp
(Arabian Nights) a magical lamp from which Aladdin summoned a genie - alarm, warning device, alarm system
a device that signals the occurrence of some undesirable event - alarm, alarm clock
a clock that wakes a sleeper at some preset time - alb
a white linen liturgical vestment with sleeves - album
a book of blank pages with pockets or envelopes - albuterol, Ventolin, Proventil
a bronchodilator (trade names Ventolin or Proventil) used for asthma and emphysema and other lung conditions - alcazar
any of various Spanish fortresses or palaces built by the Moors - alcohol thermometer, alcohol-in-glass thermometer
thermometer consisting of a glass capillary tube marked with degrees Celsius or Fahrenheit and containing alcohol which rises or falls as it expands or contracts with changes in temperature - bay, alcove
a small recess opening off a larger room - alehouse
a tavern where ale is sold - alembic
an obsolete kind of container used for distillation - alendronate, Fosamax
a tablet (trade name Fosamax) prescribed to prevent or treat osteoporosis in women after menopause - algometer
device for measuring pain caused by pressure - alidade, alidad
surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles - alidade, alidad
surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments - A-line
women's clothing that has a fitted top and a flared skirt that is widest at the hemline - alkylating agent
an antineoplastic drug used to treat some forms of cancer - Allen screw
a screw with a hexagonal hole in the head - Allen wrench
a wrench for Allen screws - alley, alleyway, back street
a narrow street with walls on both sides - alligator wrench
a wrench with a v-shaped jaw and serrations on one side (resembles the open jaws of an alligator) - allopurinol, Zyloprim
a drug (trade name Zyloprim) used to treat gout and other conditions in which there is an excessive buildup of uric acid - alms dish, alms tray
a tray for collecting the offering from a congregation - aloes, bitter aloes
a purgative made from the leaves of aloe - alpaca
a thin glossy fabric made of the wool of the Lama pacos, or made of a rayon or cotton imitation of that wool - alpenstock
a stout staff with a metal point - alpha blocker, alpha-blocker, alpha-adrenergic blocker, alpha-adrenergic blocking agent
any of various drugs that block alpha-adrenergic receptors - alpha-interferon
a form of interferon that is produced endogenously and commercially for its pharmacological effects (including regulation of the immune system and antiviral and antineoplastic effects) - alprazolam, Xanax
an antianxiety agent (trade name Xanax) of the benzodiazepine class - altar
a raised structure on which gifts or sacrifices to a god are made - altar, communion table, Lord's table
the table in Christian churches where communion is given - altarpiece, reredos
a painted or carved screen placed above and behind an altar or communion table - altazimuth
an instrument that measures the altitude and azimuth of celestial bodies - alternator
an old term for an electric generator that produces alternating current (especially in automobiles) - altimeter
an instrument that measures the height above ground - alto relievo, alto rilievo, high relief
a sculptural relief in which forms extend out from the background to at least half their depth - alum
a double sulphate of aluminum and potassium that is used as an astringent (among other things) - aluminum foil, aluminium foil, tin foil
foil made of aluminum - Amati
a violin made by Nicolo Amati or a member of his family - ambulance
a vehicle that takes people to and from hospitals