| acerate | (adjective) narrow and long and pointed; as pine leaves | Synonyms: acerose, acicular, needle-shaped |
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| acerb | (adjective) sour or bitter in taste | Synonyms: acerbic, astringent |
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| (adjective) harsh or corrosive in tone | Synonyms: acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic |
| acerbate | (verb) make sour or bitter | - |
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| (verb) cause to be bitter or resentful | Synonyms: embitter, envenom |
| acerbic | (adjective) sour or bitter in taste | Synonyms: acerb, astringent |
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| (adjective) harsh or corrosive in tone | Synonyms: acerb, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic |
| acerbity | (noun) a rough and bitter manner | Synonyms: acrimony, bitterness, jaundice, tartness, thorniness |
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| (noun) a sharp sour taste | Synonyms: tartness |
| (noun) a sharp bitterness | - |
| acerola | (noun) acid red or yellow cherry-like fruit of a tropical American shrub very rich in vitamin C | Synonyms: barbados cherry, surinam cherry, West Indian cherry |
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| (noun) tropical American shrub bearing edible acid red fruit resembling cherries | Synonyms: barbados cherry, Malpighia glabra, Surinam cherry, West Indian cherry |
| acerose | (adjective) narrow and long and pointed; as pine leaves | Synonyms: acerate, acicular, needle-shaped |
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| acervate | (adjective) pertaining to a growth of fungi that forms a heaped-up mass | - |
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| acervulus | (noun) small asexual fruiting body resembling a cushion or blister consisting of a mat of hyphae that is produced on a host by some fungi | - |
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| acylglycerol | (noun) an ester of glycerol and fatty acids that occurs naturally as fats and fatty oils | Synonyms: glyceride |
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| adducer | (noun) a discussant who offers an example or a reason or a proof | - |
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| advancer | (noun) someone who advances | - |
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| announcer | (noun) reads news, commercials on radio or television | - |
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| (noun) someone who proclaims a message publicly | - |
| anticancer | (adjective) used in the treatment of cancer | Synonyms: antineoplastic, antitumor, antitumour |
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| artificer | (noun) a skilled worker who practices some trade or handicraft | Synonyms: artisan, craftsman, journeyman |
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| (noun) someone who is the first to think of or make something | Synonyms: discoverer, inventor |
| (noun) an enlisted man responsible for the upkeep of small arms and machine guns etc. | Synonyms: armorer, armourer |
| ascertain | (verb) be careful or certain to do something; make certain of something | Synonyms: assure, check, control, ensure, insure, see, see to it |
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| (verb) learn or discover with certainty | - |
| (verb) find out, learn, or determine with certainty, usually by making an inquiry or other effort | Synonyms: check, determine, find out, learn, see, watch |
| (verb) establish after a calculation, investigation, experiment, survey, or study | Synonyms: determine, find, find out |
| ascertainable | (adjective) capable of being ascertained or found out | Synonyms: discoverable |
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| ascertained | (adjective) discovered or determined by scientific observation | Synonyms: discovered, observed |
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| backspacer | (noun) the typewriter key used for back spacing | Synonyms: backspace, backspace key |
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| balancer | (noun) either of the rudimentary hind wings of dipterous insects; used for maintaining equilibrium during flight | Synonyms: halter, haltere |
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| (noun) an acrobat who balances himself in difficult positions | - |
| bouncer | (noun) a person whose duty is to throw troublemakers out of a bar or public meeting | Synonyms: chucker-out |
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| bracer | (noun) a tonic or restorative (especially a drink of liquor) | Synonyms: pick-me-up |
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| (noun) a protective covering for the wrist or arm that is used in archery and fencing and other sports | Synonyms: armguard |
| bracero | (noun) a Mexican laborer who worked in the United States on farms and railroads in order to ease labor shortages during World War II | - |
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| cancer | (noun) any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream | Synonyms: malignant neoplastic disease |
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| cancerous | (adjective) like a cancer; an evil that grows and spreads | - |
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| (adjective) relating to or affected with cancer | - |
| cancerweed | (noun) sage of eastern United States | Synonyms: cancer weed, Salvia lyrata |
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| ceramic | (adjective) of or relating to or made from a ceramic | - |
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| (noun) an artifact made of hard brittle material produced from nonmetallic minerals by firing at high temperatures | - |
| ceramicist | (noun) a craftsman who shapes pottery on a potter's wheel and bakes them in a kiln | Synonyms: ceramist, potter, thrower |
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| ceramics | (noun) the art of making and decorating pottery | - |
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| ceramist | (noun) a craftsman who shapes pottery on a potter's wheel and bakes them in a kiln | Synonyms: ceramicist, potter, thrower |
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| ceras | (noun) one of the often brightly colored and branching hornlike structures on the back of the nudibranch (and other related mollusks) that serve as gills | - |
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| cerastes | (noun) highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye | Synonyms: Cerastes cornutus, horned asp, horned viper, sand viper |
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| cerate | (noun) a hard medicated paste made of lard or oil mixed with wax or resin | - |
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| ceratin | (noun) a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves | Synonyms: keratin |
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| ceratodus | (noun) extinct lungfish | - |
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| ceratopsian | (noun) any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia | Synonyms: horned dinosaur |
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| ceratosaur | (noun) primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America | Synonyms: ceratosaurus |
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| ceratosaurus | (noun) primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America | Synonyms: ceratosaur |
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| ceratozamia | (noun) a small cycad of the genus Ceratozamia having a short scaly woody trunk and fernlike foliage and woody cones; Mexico | - |
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| cercaria | (noun) tadpole-shaped parasitic larva of a trematode worm; tail disappears in adult stage | - |
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| cercarial | (adjective) of or relating to cercaria | - |
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| cere | (noun) the fleshy, waxy covering at the base of the upper beak of some birds | - |
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| (verb) wrap up in a cerecloth | - |
| cereal | (adjective) made of grain or relating to grain or the plants that produce it | - |
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| (noun) a breakfast food prepared from grain | - |
| (noun) foodstuff prepared from the starchy grains of cereal grasses | Synonyms: food grain, grain |
| (noun) grass whose starchy grains are used as food: wheat, rice, rye, oats, maize, buckwheat, millet | Synonyms: cereal grass |
| cerebellar | (adjective) relating to or associated with the cerebellum | - |
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| cerebellum | (noun) a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans | - |
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| cerebral | (adjective) involving intelligence rather than emotions or instinct | Synonyms: intellectual |
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| (adjective) of or relating to the cerebrum or brain | - |
| cerebrally | (adverb) in the brain | - |
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| (adverb) in an intellectual manner | - |
| cerebrate | (verb) use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments | Synonyms: cogitate, think |
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| cerebration | (noun) the process of using your mind to consider something carefully | Synonyms: intellection, mentation, thinking, thought, thought process |
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| cerebromeningitis | (noun) inflammation of the brain and spinal cord and their meninges | Synonyms: encephalomeningitis, meningoencephalitis |
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| cerebroside | (noun) A cerebroside is any of various organic lipid compounds containing glucose or galactose and glucose; it occurs in the myelin sheath of cerebrospinal neurons. | - |
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| cerebrospinal | (adjective) of or relating to the brain and spinal cord | - |
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| cerebrovascular | (adjective) of or relating to the brain and the blood vessels that supply it | - |
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| cerebrum | (noun) anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans | - |
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| cerecloth | (noun) a waterproof waxed cloth once used as a shroud | - |
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| cerement | (noun) burial garment in which a corpse is wrapped | Synonyms: pall, shroud, winding-clothes, winding-sheet |
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| ceremonial | (adjective) marked by pomp or ceremony or formality | - |
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| (noun) a formal event performed on a special occasion | Synonyms: ceremonial occasion, ceremony, observance |
| ceremonially | (adverb) in a ceremonial manner | Synonyms: ritually |
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| (adverb) in a ceremonious manner | Synonyms: ceremoniously |
| ceremonious | (adjective) characterized by pomp and ceremony and stately display | Synonyms: pompous |
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| (adjective) rigidly formal or bound by convention | Synonyms: conventional |
| ceremoniously | (adverb) in a ceremonious manner | Synonyms: ceremonially |
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| ceremoniousness | (noun) a ceremonial manner | - |
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| ceremony | (noun) the proper or conventional behavior on some solemn occasion | - |
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| (noun) any activity that is performed in an especially solemn elaborate or formal way | - |
| (noun) a formal event performed on a special occasion | Synonyms: ceremonial, ceremonial occasion, observance |
| ceresin | (noun) a white wax extracted from ozokerite | - |
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| ceric | (adjective) of or relating to or containing cerium especially with valence 4 | - |
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| ceriman | (noun) tropical cylindrical fruit resembling a pinecone with pineapple-banana flavor | Synonyms: monstera |
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| (noun) tropical American vine having roots that hang like cords and cylindrical fruit with a pineapple and banana flavor | Synonyms: Monstera deliciosa |
| cerise | (adjective) of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies | Synonyms: blood-red, carmine, cherry-red, cherry, crimson, red, reddish, ruby-red, ruby, ruddy, scarlet |
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| (noun) a red the color of ripe cherries | Synonyms: cherry, cherry red |
| cerium | (noun) a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group | Synonyms: atomic number 58, Ce |
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| cerivastatin | (noun) an oral drug (trade name Baycol) to reduce blood cholesterol levels | Synonyms: Baycol |
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| cernuous | (adjective) having branches or flower heads that bend downward | Synonyms: drooping, nodding, pendulous, weeping |
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| cero | (noun) large edible mackerel of temperate United States coastal Atlantic waters | Synonyms: kingfish, pintado, Scomberomorus regalis |
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| (noun) large mackerel with long pointed snout; important food and game fish of the eastern Atlantic coast southward to Brazil | Synonyms: cavalla, king mackerel, Scomberomorus cavalla |
| cerography | (noun) the art of engraving on a waxed plate on which a printing surface is created by electrotyping. | - |
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| ceroplastics | (noun) the art of modeling in wax. | - |
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| cerous | (adjective) of or relating to or containing cerium with valence 3 | - |
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| cert | (noun) an absolute certainty | - |
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| certain | (adjective) established beyond doubt or question; definitely known | - |
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| (adjective) having or feeling no doubt or uncertainty; confident and assured | Synonyms: sure |
| (adjective) certain to occur; destined or inevitable | Synonyms: sure |
| (adjective) established irrevocably | Synonyms: sealed |
| (adjective) exercising or taking care great enough to bring assurance | Synonyms: sure |
| (adjective) definite but not specified or identified | - |
| (adjective) reliable in operation or effect | Synonyms: sure |
| certainly | (adverb) definitely or positively (`sure' is sometimes used informally for `surely') | Synonyms: for certain, for sure, sure, sure as shooting, sure enough, surely |
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| certainty | (noun) something that is certain | Synonyms: foregone conclusion, sure thing |
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| (noun) the state of being certain | - |
| certifiable | (adjective) capable of being guaranteed or certified | - |
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| (adjective) fit to be certified as insane (and treated accordingly) | Synonyms: certified |
| certificate | (noun) a document attesting to the truth of certain stated facts | Synonyms: certification, credential, credentials |
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| (noun) a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends | Synonyms: security |
| (verb) authorize by certificate | - |
| (verb) present someone with a certificate | - |
| certificated | (adjective) furnished with or authorized by a certificate: | - |
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| certification | (noun) the act of certifying or bestowing a franchise on | Synonyms: enfranchisement |
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| (noun) validating the authenticity of something or someone | Synonyms: authentication |
| (noun) confirmation that some fact or statement is true through the use of documentary evidence | Synonyms: corroboration, documentation |
| (noun) a document attesting to the truth of certain stated facts | Synonyms: certificate, credential, credentials |
| certificatory | (adjective) serving to certify or endorse authoritatively | - |
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| certified | (adjective) endorsed authoritatively as having met certain requirements | - |
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| (adjective) fit to be certified as insane (and treated accordingly) | Synonyms: certifiable |
| (adjective) holding appropriate documentation and officially on record as qualified to perform a specified function or practice a specified skill | Synonyms: qualified |
| certify | (verb) provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes | Synonyms: attest, demonstrate, evidence, manifest |
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| (verb) declare legally insane | - |
| (verb) guarantee payment on; of checks | - |
| (verb) guarantee as meeting a certain standard | Synonyms: endorse, indorse |
| (verb) authorize officially | Synonyms: licence, license |
| certiorari | (noun) a common law writ issued by a superior court to one of inferior jurisdiction demanding the record of a particular case | Synonyms: writ of certiorari |
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| certitude | (noun) total certainty or greater certainty than circumstances warrant | Synonyms: cocksureness, overconfidence |
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| cerulean | (adjective) of a deep somewhat purplish blue color similar to that of a clear October sky | Synonyms: azure, bright blue, sky-blue |
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| (noun) a light shade of blue | Synonyms: azure, lazuline, sapphire, sky-blue |
| cerumen | (noun) a soft yellow wax secreted by glands in the ear canal | Synonyms: earwax |
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| ceruminous | (adjective) relating to or secreting cerumen | - |
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| ceruse | (noun) a poisonous white pigment that contains lead | Synonyms: lead carbonate, white lead |
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| cerussite | (noun) a mineral consisting of lead carbonate that is an important source of lead | Synonyms: white lead ore |
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| cervical | (adjective) relating to or associated with the neck | - |
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| (adjective) of or relating to the cervix of the uterus | - |
| cervicitis | (noun) inflammation of the uterine cervix | - |
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| cervid | (noun) distinguished from Bovidae by the male's having solid deciduous antlers | Synonyms: deer |
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| cervine | (adjective) relating to or resembling deer | - |
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| cervix | (noun) the part of an organism (human or animal) that connects the head to the rest of the body | Synonyms: neck |
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| (noun) necklike opening to the uterus | Synonyms: cervix uteri, uterine cervix |
| chancery | (noun) an office of archives for public or ecclesiastic records; a court of public records | - |
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| (noun) a court with jurisdiction in equity | Synonyms: court of chancery |
| chelicera | (noun) either of the first pair of fang-like appendages near the mouth of an arachnid; often modified for grasping and piercing | - |
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| cheliceral | (adjective) of or relating to or resembling chelicerae | Synonyms: chelicerate |
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| chelicerate | (adjective) of or relating to or resembling chelicerae | Synonyms: cheliceral |
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