| arctiid | (noun) stout-bodied broad-winged moth with conspicuously striped or spotted wings; larvae are hairy caterpillars | Synonyms: arctiid moth |
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| artefact | (noun) a man-made object taken as a whole | Synonyms: artifact |
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| arteriectasia | (noun) an abnormal distension of an artery | Synonyms: arteriectasis |
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| arteriectasis | (noun) an abnormal distension of an artery | Synonyms: arteriectasia |
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| artifact | (noun) a man-made object taken as a whole | Synonyms: artefact |
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| artiodactyl | (noun) placental mammal having hooves with an even number of functional toes on each foot | Synonyms: artiodactyl mammal, even-toed ungulate |
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| aspect | (noun) the feelings expressed on a person's face | Synonyms: expression, face, facial expression, look |
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| (noun) a characteristic to be considered | - |
| (noun) a distinct feature or element in a problem | Synonyms: facet |
| (noun) the visual percept of a region | Synonyms: panorama, prospect, scene, view, vista |
| (noun) the beginning or duration or completion or repetition of the action of a verb | - |
| ataractic | (noun) a drug used to reduce stress or tension without reducing mental clarity | Synonyms: antianxiety agent, ataractic agent, ataractic drug, tranquilizer, tranquilliser, tranquillizer |
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| atelectasis | (noun) collapse of an expanded lung (especially in infants); also failure of pulmonary alveoli to expand at birth | - |
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| attracter | (noun) a characteristic that provides pleasure and attracts | Synonyms: attraction, attractive feature, attractor, magnet |
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| (noun) (physics) a point in the ideal multidimensional phase space that is used to describe a system toward which the system tends to evolve regardless of the starting conditions of the system | Synonyms: attractor |
| (noun) an entertainer who attracts large audiences | Synonyms: attraction, attractor, draw, drawing card |
| attraction | (noun) the quality of arousing interest; being attractive or something that attracts | Synonyms: attractiveness |
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| (noun) a characteristic that provides pleasure and attracts | Synonyms: attracter, attractive feature, attractor, magnet |
| (noun) an entertainment that is offered to the public | - |
| (noun) an entertainer who attracts large audiences | Synonyms: attracter, attractor, draw, drawing card |
| (noun) the force by which one object attracts another | Synonyms: attractive force |
| attractiveness | (noun) sexual allure | - |
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| (noun) the quality of arousing interest; being attractive or something that attracts | Synonyms: attraction |
| attractor | (noun) a characteristic that provides pleasure and attracts | Synonyms: attracter, attraction, attractive feature, magnet |
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| (noun) (physics) a point in the ideal multidimensional phase space that is used to describe a system toward which the system tends to evolve regardless of the starting conditions of the system | Synonyms: attracter |
| (noun) an entertainer who attracts large audiences | Synonyms: attracter, attraction, draw, drawing card |
| auction | (noun) the public sale of something to the highest bidder | Synonyms: auction sale, vendue |
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| (noun) a variety of bridge in which tricks made in excess of the contract are scored toward game; now generally superseded by contract bridge | Synonyms: auction bridge |
| auctioneer | (noun) an agent who conducts an auction | - |
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| autocorrect | (noun) a system for automatically correcting text | - |
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| autodidact | (noun) a person who has taught himself | - |
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| autoinjector | (noun) a hypodermic syringe to use in injecting yourself with a liquid | - |
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| bacteremia | (noun) transient presence of bacteria (or other microorganisms) in the blood | Synonyms: bacteriaemia, bacteriemia |
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| bacteria | (noun) (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants | Synonyms: bacterium |
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| bacteriacide | (noun) any chemical agent that destroys bacteria | Synonyms: bactericide |
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| bacteriaemia | (noun) transient presence of bacteria (or other microorganisms) in the blood | Synonyms: bacteremia, bacteriemia |
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| bactericide | (noun) any drug that destroys bacteria or inhibits their growth | Synonyms: antibacterial, antibacterial drug |
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| (noun) any chemical agent that destroys bacteria | Synonyms: bacteriacide |
| bacteriemia | (noun) transient presence of bacteria (or other microorganisms) in the blood | Synonyms: bacteremia, bacteriaemia |
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| bacteriochlorophyll | (noun) a substance in photosensitive bacteria that is related to but different from chlorophyll of higher plants | - |
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| bacteriologist | (noun) a biologist who studies bacteria | - |
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| bacteriology | (noun) the branch of medical science that studies bacteria in relation to disease | - |
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| bacteriolysis | (noun) dissolution or destruction of bacteria | - |
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| bacteriophage | (noun) a virus that is parasitic (reproduces itself) in bacteria | Synonyms: phage |
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| bacteriostasis | (noun) inhibition of the growth of bacteria | - |
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| bacteriostat | (noun) a chemical or biological material that inhibits bacterial growth | - |
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| bacterium | (noun) (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants | Synonyms: bacteria |
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| bacteroid | (noun) a rodlike bacterium (especially any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants) | - |
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| benedict | (noun) a newly married man (especially one who has long been a bachelor) | Synonyms: benedick |
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| benedictine | (noun) a French liqueur originally made by Benedictine monks | - |
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| benediction | (noun) the act of praying for divine protection | Synonyms: blessing |
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| (noun) a ceremonial prayer invoking divine protection | Synonyms: blessing |
| benefaction | (noun) an act intending or showing kindness and good will | Synonyms: benevolence |
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| (noun) a contribution of money or assistance | - |
| benefactor | (noun) a person who helps people or institutions (especially with financial help) | Synonyms: helper |
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| benefactress | (noun) a woman benefactor | - |
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| bioelectricity | (noun) electric phenomena in animals or plants | - |
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| bisection | (noun) dividing into two equal parts | - |
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| brachydactylia | (noun) abnormal shortness of fingers and toes | Synonyms: brachydactyly |
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| brachydactyly | (noun) abnormal shortness of fingers and toes | Synonyms: brachydactylia |
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| bract | (noun) a modified leaf or leaflike part just below and protecting an inflorescence | - |
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| bracteole | (noun) a small bract | Synonyms: bractlet |
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| bractlet | (noun) a small bract | Synonyms: bracteole |
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| byproduct | (noun) a product made during the manufacture of something else | Synonyms: by-product, spin-off |
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| (noun) a secondary and sometimes unexpected consequence | Synonyms: by-product |
| cactus | (noun) any succulent plant of the family Cactaceae native chiefly to arid regions of the New World and usually having spines | - |
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| calefaction | (noun) the property of being warming | Synonyms: incalescence |
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| callosectomy | (noun) severing the corpus callosum so that communication between the cerebral hemispheres is interrupted (in cases of severe intractable epilepsy) | Synonyms: callosotomy |
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| catalectic | (noun) (prosody) a line of verse that lacks a syllable in the last metrical foot | - |
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| cataphract | (noun) armor that protects the wearer's whole body | Synonyms: body armor, body armour, coat of mail, suit of armor, suit of armour |
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| cataract | (noun) a large waterfall; violent rush of water over a precipice | - |
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| (noun) an eye disease that involves the clouding or opacification of the natural lens of the eye | - |
| chaenactis | (noun) any of several United States plants having long stalks of funnel-shaped white or yellow flowers | - |
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| character | (noun) (genetics) an attribute (structural or functional) that is determined by a gene or group of genes | - |
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| (noun) the inherent complex of attributes that determines a persons moral and ethical actions and reactions | Synonyms: fiber, fibre |
| (noun) a characteristic property that defines the apparent individual nature of something | Synonyms: lineament, quality |
| (noun) an actor's portrayal of someone in a play | Synonyms: part, persona, role, theatrical role |
| (noun) a written symbol that is used to represent speech | Synonyms: graph, grapheme, graphic symbol |
| (noun) a formal recommendation by a former employer to a potential future employer describing the person's qualifications and dependability | Synonyms: character reference, reference |
| (noun) a person of a specified kind (usually with many eccentricities) | Synonyms: case, eccentric, type |
| (noun) an imaginary person represented in a work of fiction (play or film or story) | Synonyms: fictional character, fictitious character |
| (noun) good repute | - |
| characterisation | (noun) a graphic or vivid verbal description | Synonyms: characterization, delineation, depiction, picture, word-painting, word picture |
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| (noun) the act of describing distinctive characteristics or essential features | Synonyms: characterization |
| characteristic | (noun) a distinguishing quality; a feature that can be used to identify something | - |
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| (noun) any measurable property of a device measured under closely specified conditions | Synonyms: device characteristic |
| (noun) a prominent attribute or aspect of something | Synonyms: feature |
| (noun) the integer part (positive or negative) of the representation of a logarithm; in the expression log 643 = 2.808 the characteristic is 2 | - |
| characteristicness | (noun) The quality or state of being a distinguishing feature of a person or thing. | - |
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| characterization | (noun) acting the part of a character on stage; dramatically representing the character by speech and action and gesture | Synonyms: enactment, personation, portrayal |
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| (noun) a graphic or vivid verbal description | Synonyms: characterisation, delineation, depiction, picture, word-painting, word picture |
| (noun) the act of describing distinctive characteristics or essential features | Synonyms: characterisation |
| chemoattractant | (noun) a substance inducing positive chemotaxis in motile cells. | - |
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| chiropractic | (noun) a method of treatment that manipulates body structures (especially the spine) to relieve low back pain or even headache or high blood pressure | - |
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| chiropractor | (noun) a therapist who practices chiropractic | - |
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| cholecystectomy | (noun) surgical removal of the gall bladder (usually for relief of gallstone pain) | - |
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| cincture | (noun) a band of material around the waist that strengthens a skirt or trousers | Synonyms: girdle, sash, waistband, waistcloth |
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| circumduction | (noun) a circular movement of a limb or eye | - |
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| circumspection | (noun) the trait of being circumspect and prudent | Synonyms: caution |
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| (noun) knowing how to avoid embarrassment or distress | Synonyms: discreetness, discretion, prudence |
| climacteric | (noun) the time in a woman's life in which the menstrual cycle ends | Synonyms: change of life, menopause |
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| (noun) a period in a man's life corresponding to menopause | - |
| clinodactyly | (noun) a congenital defect in which one or more toes or fingers are abnormally positioned | - |
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| clitoridectomy | (noun) excision of the clitoris | Synonyms: female circumcision |
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| coaction | (noun) act of working jointly | Synonyms: collaboration |
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| coarctation | (noun) (biology) a narrowing or constriction of a vessel or canal; especially a congenital narrowing of the aorta | - |
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| (noun) tight or narrow compression | Synonyms: constriction |
| cofactor | (noun) a substance (as a coenzyme) that must join with another to produce a given result | - |
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| collect | (noun) a short prayer generally preceding the lesson in the Church of Rome or the Church of England | - |
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| collectable | (noun) things considered to be worth collecting (not necessarily valuable or antique) | Synonyms: collectible |
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| collectibility | (noun) The quality of being subject to payment or likely to be paid. | - |
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| collectible | (noun) things considered to be worth collecting (not necessarily valuable or antique) | Synonyms: collectable |
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| collecting | (noun) the act of gathering something together | Synonyms: aggregation, assembling, collection |
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| collection | (noun) the act of gathering something together | Synonyms: aggregation, assembling, collecting |
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| (noun) a publication containing a variety of works | Synonyms: compendium |
| (noun) request for a sum of money | Synonyms: appeal, ingathering, solicitation |
| (noun) several things grouped together or considered as a whole | Synonyms: accumulation, aggregation, assemblage |
| collective | (noun) members of a cooperative enterprise | - |
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| collectivisation | (noun) the organization of a nation or economy on the basis of collectivism | Synonyms: collectivization |
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| collectivism | (noun) a political theory that the people should own the means of production | - |
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| (noun) Soviet communism | Synonyms: Bolshevism, sovietism |
| collectivist | (noun) a person who belongs to the political left | Synonyms: left-winger, leftist |
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| collectivization | (noun) the organization of a nation or economy on the basis of collectivism | Synonyms: collectivisation |
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| collector | (noun) the electrode in a transistor through which a primary flow of carriers leaves the region between the electrodes | - |
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| (noun) a crater that has collected cosmic material hitting the earth | - |
| (noun) a person who is employed to collect payments (as for rent or taxes) | Synonyms: accumulator, gatherer |
| (noun) a person who collects things | Synonyms: aggregator |
| compact | (noun) a small cosmetics case with a mirror; to be carried in a woman's purse | Synonyms: powder compact |
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| (noun) a small and economical car | Synonyms: compact car |
| (noun) a signed written agreement between two or more parties (nations) to perform some action | Synonyms: concordat, covenant |
| compaction | (noun) the act of crushing | Synonyms: crunch, crush |
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| (noun) an increase in the density of something | Synonyms: compression, concretion, densification |
| compactness | (noun) the spatial property of being crowded together | Synonyms: concentration, denseness, density, tightness |
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| (noun) the consistency of a compact solid | - |
| compunction | (noun) a feeling of deep regret (usually for some misdeed) | Synonyms: remorse, self-reproach |
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| concoction | (noun) the act of creating something (a medicine or drink or soup etc.) by compounding or mixing a variety of components | Synonyms: confection |
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| (noun) the invention of a scheme or story to suit some purpose | - |
| (noun) an occurrence of an unusual mixture | - |
| (noun) any foodstuff made by combining different ingredients | Synonyms: intermixture, mixture |
| conduct | (noun) manner of acting or controlling yourself | Synonyms: behavior, behaviour, doings |
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| (noun) (behavioral attributes) the way a person behaves toward other people | Synonyms: behavior, behaviour, demeanor, demeanour, deportment |
| conductance | (noun) a material's capacity to conduct electricity; measured as the reciprocal of electrical resistance | - |
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| conducting | (noun) the way of administering a business | - |
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| (noun) the direction of an orchestra or choir | - |
| conduction | (noun) the transmission of heat or electricity or sound | Synonyms: conductivity |
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| conductivity | (noun) the transmission of heat or electricity or sound | Synonyms: conduction |
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| conductor | (noun) a device designed to transmit electricity, heat, etc. | - |
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| (noun) the person who leads a musical group | Synonyms: director, music director |
| (noun) the person who collects fares on a public conveyance | - |
| (noun) a substance that readily conducts e.g. electricity and heat | - |
| conductress | (noun) a woman conductor | - |
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| confect | (noun) a rich sweet made of flavored sugar and often combined with fruit or nuts | Synonyms: candy |
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| confection | (noun) the act of creating something (a medicine or drink or soup etc.) by compounding or mixing a variety of components | Synonyms: concoction |
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| (noun) a food rich in sugar | Synonyms: sweet |
| confectionary | (noun) a confectioner's shop | Synonyms: candy store, confectionery |
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| confectioner | (noun) someone who makes candies and other sweets | Synonyms: candymaker |
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