| castling | (noun) interchanging the positions of the king and a rook | Synonyms: castle |
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| castor | (noun) a hat made with the fur of a beaver (or similar material) | Synonyms: beaver |
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| (noun) a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable | Synonyms: caster |
| (noun) a shaker with a perforated top for sprinkling powdered sugar | Synonyms: caster |
| castrate | (noun) a man who has been castrated and is incapable of reproduction | Synonyms: eunuch |
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| (verb) remove the testicles of a male animal | Synonyms: demasculinise, demasculinize, emasculate |
| (verb) remove the ovaries of | Synonyms: alter, neuter, spay |
| (verb) deprive of strength or vigor | Synonyms: emasculate |
| (verb) edit by omitting or modifying parts considered indelicate | Synonyms: bowdlerise, bowdlerize, expurgate, shorten |
| castrated | (adjective) deprived of sexual capacity or sexual attributes | Synonyms: unsexed |
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| castration | (noun) neutering a male animal by removing the testicles | Synonyms: emasculation |
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| (noun) surgical removal of the testes or ovaries (usually to inhibit hormone secretion in cases of breast cancer in women or prostate cancer in men) | - |
| (noun) the deletion of objectionable parts from a literary work | Synonyms: expurgation |
| castrato | (noun) a male singer who was castrated before puberty and retains a soprano or alto voice | - |
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| casuist | (noun) someone whose reasoning is subtle and often specious | Synonyms: sophist |
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| casuistic | (adjective) of or relating to the use of ethical principles to resolve moral problems | Synonyms: casuistical |
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| (adjective) of or relating to or practicing casuistry | Synonyms: casuistical |
| casuistical | (adjective) of or relating to the use of ethical principles to resolve moral problems | Synonyms: casuistic |
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| (adjective) of or relating to or practicing casuistry | Synonyms: casuistic |
| casuistry | (noun) moral philosophy based on the application of general ethical principles to resolve moral dilemmas | - |
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| (noun) argumentation that is specious or excessively subtle and intended to be misleading | - |
| catacaustic | (noun) a caustic curve formed by light reflecting from a curved surface. | - |
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| catachrestic | (adjective) constituting or characterized by or given to catachresis | Synonyms: catachrestical |
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| catachrestical | (adjective) constituting or characterized by or given to catachresis | Synonyms: catachrestic |
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| catalyst | (noun) something that causes an important event to happen | - |
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| (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected | Synonyms: accelerator |
| cataplastic | (adjective) of or relating to cataplasia | - |
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| catastrophe | (noun) an event resulting in great loss and misfortune | Synonyms: calamity, cataclysm, disaster, tragedy |
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| (noun) a sudden violent change in the earth's surface | Synonyms: cataclysm |
| (noun) a state of extreme (usually irremediable) ruin and misfortune | Synonyms: disaster |
| catastrophic | (adjective) extremely harmful; bringing physical or financial ruin | Synonyms: ruinous |
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| catastrophically | (adverb) with unfortunate consequences | - |
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| catechist | (noun) one who instructs catechumens in preparation for baptism (especially one using a catechism) | - |
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| catechistic | (adjective) of or relating to or resembling a rigorous catechism | Synonyms: catechetic |
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| catostomid | (noun) a cypriniform fish of the family Catostomidae | - |
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| caustic | (adjective) of a substance, especially a strong acid; capable of destroying or eating away by chemical action | Synonyms: corrosive, erosive, mordant, vitriolic |
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| (adjective) harsh or corrosive in tone | Synonyms: acerb, acerbic, acid, acrid, bitter, blistering, sulfurous, sulphurous, virulent, vitriolic |
| (noun) the envelope of light rays reflected or refracted by a curved surface or object | - |
| (noun) any chemical substance that burns or destroys living tissue | - |
| caustically | (adverb) in a caustic vitriolic manner | Synonyms: vitriolically |
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| celesta | (noun) a musical instrument consisting of graduated steel plates that are struck by hammers activated by a keyboard | - |
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| celestial | (adjective) relating to or inhabiting a divine heaven | Synonyms: heavenly |
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| (adjective) of or relating to the sky | Synonyms: heavenly |
| (adjective) of heaven or the spirit | Synonyms: ethereal, supernal |
| celestite | (noun) a mineral consisting of strontium sulphate | - |
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| cellist | (noun) someone who plays a violoncello | Synonyms: violoncellist |
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| centralist | (adjective) advocating centralization | Synonyms: centralistic |
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| centralistic | (adjective) advocating centralization | Synonyms: centralist |
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| centrist | (adjective) supporting or pursuing a course of action that is neither liberal nor conservative | Synonyms: middle-of-the-road |
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| (noun) a person who takes a position in the political center | Synonyms: middle of the roader, moderate, moderationist |
| 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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| 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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| 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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| cerivastatin | (noun) an oral drug (trade name Baycol) to reduce blood cholesterol levels | Synonyms: Baycol |
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| ceroplastics | (noun) the art of modeling in wax. | - |
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| cestode | (noun) ribbonlike flatworms that are parasitic in the intestines of humans and other vertebrates | Synonyms: tapeworm |
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| chalkstone | (noun) a deposit of urates around a joint or in the external ear; diagnostic of advanced or chronic gout | Synonyms: tophus |
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| characteristic | (adjective) typical or distinctive | - |
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| (noun) a distinguishing quality; a feature that can be used to identify something | - |
| (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 | - |
| characteristically | (adverb) in characteristic manner | - |
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| characteristicness | (noun) The quality or state of being a distinguishing feature of a person or thing. | - |
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| chartist | (noun) a stock market analyst who tries to predict market trends from graphs of recent prices of securities | Synonyms: technical analyst |
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| chaste | (adjective) morally pure (especially not having experienced sexual intercourse) | - |
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| (adjective) abstaining from unlawful sexual intercourse | - |
| (adjective) pure and simple in design or style | - |
| chastely | (adverb) in a chaste and virtuous manner | Synonyms: virtuously |
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| chasten | (verb) change by restraining or moderating | Synonyms: temper |
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| (verb) correct by punishment or discipline | Synonyms: subdue, tame |
| (verb) censure severely | Synonyms: castigate, chastise, correct, objurgate |
| chasteness | (noun) lack of ornamentation | Synonyms: restraint, simpleness, simplicity |
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| chastening | (noun) a rebuke for making a mistake | Synonyms: chastisement, correction |
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| chastise | (verb) censure severely | Synonyms: castigate, chasten, correct, objurgate |
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| chastisement | (noun) verbal punishment | Synonyms: castigation |
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| (noun) a rebuke for making a mistake | Synonyms: chastening, correction |
| chastity | (noun) abstaining from sexual relations (as because of religious vows) | Synonyms: celibacy, sexual abstention |
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| (noun) morality with respect to sexual relations | Synonyms: sexual morality, virtue |
| chauvinist | (noun) an extreme bellicose nationalist | Synonyms: flag-waver, hundred-percenter, jingo, jingoist, patrioteer |
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| (noun) a person with a prejudiced belief in the superiority of his or her own kind | - |
| chauvinistic | (adjective) of or relating to persons convinced of the superiority of their own gender or kind | - |
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| (adjective) fanatically patriotic | Synonyms: flag-waving, jingoistic, nationalistic, superpatriotic, ultranationalistic |
| checklist | (noun) a list of items (names or tasks etc.) to be checked or consulted | - |
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| chemist | (noun) a scientist who specializes in chemistry | - |
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| (noun) a health professional trained in the art of preparing and dispensing drugs | Synonyms: apothecary, druggist, pharmacist, pill pusher, pill roller |
| chemistry | (noun) the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions | Synonyms: chemical science |
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| (noun) the way two individuals relate to each other | Synonyms: alchemy, interpersonal chemistry |
| (noun) the chemical composition and properties of a substance or object | - |
| cherrystone | (noun) a half-grown quahog | Synonyms: cherrystone clam |
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| (noun) small quahog larger than a littleneck; eaten raw or cooked as in e.g. clams casino | Synonyms: cherrystone clam |
| chest | (noun) box with a lid; used for storage; usually large and sturdy | - |
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| (noun) furniture with drawers for keeping clothes | Synonyms: bureau, chest of drawers, dresser |
| (noun) the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates | Synonyms: pectus, thorax |
| (noun) the front of the trunk from the neck to the abdomen | Synonyms: breast |
| chesterfield | (noun) a fitted overcoat with a velvet collar | - |
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| (noun) an overstuffed davenport with upright armrests | - |
| chestnut | (adjective) (of hair or feathers) of a golden brown to reddish brown color | - |
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| (noun) a dark golden-brown or reddish-brown horse | - |
| (noun) a small horny callus on the inner surface of a horse's leg | - |
| (noun) the brown color of chestnuts | - |
| (noun) edible nut of any of various chestnut trees of the genus Castanea | - |
| (noun) any of several attractive deciduous trees yellow-brown in autumn; yield a hard wood and edible nuts in a prickly bur | Synonyms: chestnut tree |
| (noun) wood of any of various chestnut trees of the genus Castanea | - |
| chesty | (adjective) having or showing feelings of unwarranted importance out of overbearing pride | Synonyms: arrogant, self-important |
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| (adjective) marked by a large or well-developed chest | Synonyms: big-chested |
| chiliast | (noun) a person who believes in the coming of the millennium (a time of great peace and prosperity) | Synonyms: millenarian, millenarist |
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| chiliastic | (adjective) relating to or believing in the millennium of peace and happiness | Synonyms: millenarian |
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| chimneystack | (noun) the part of the chimney that is above the roof; usually has several flues | - |
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| chiropodist | (noun) a specialist in care for the feet | Synonyms: foot doctor, podiatrist |
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| chloroplast | (noun) plastid containing chlorophyll and other pigments; in plants that carry out photosynthesis | - |
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| choirmaster | (noun) the musical director of a choir | Synonyms: cantor, precentor |
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| cholecystectomy | (noun) surgical removal of the gall bladder (usually for relief of gallstone pain) | - |
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| cholecystitis | (noun) inflammation of the gall bladder | - |
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| cholecystokinin | (noun) a gastrointestinal hormone that stimulates the secretion of pancreatic enzymes and the contraction and emptying of the gall bladder; its release is stimulated by the presence of fatty acids and amino acids in the small intestine | - |
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| cholestasis | (noun) a condition in which little or no bile is secreted or the flow of bile into the digestive tract is obstructed | Synonyms: acholia |
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| cholesterin | (noun) an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues | Synonyms: cholesterol |
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| cholesterol | (noun) an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues | Synonyms: cholesterin |
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| cholinesterase | (noun) an enzyme that hydrolyses acetylcholine (into choline and acetic acid) | - |
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| chondrodystrophy | (noun) an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism | Synonyms: achondroplasia, achondroplasty, osteosclerosis congenita |
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| chopsteak | (noun) a patty of ground cooked beef | Synonyms: beef patty, chop steak, chopped steak, hamburger steak |
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| chopstick | (noun) one of a pair of slender sticks used as oriental tableware to eat food with | - |
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| chorister | (noun) a singer in a choir | - |
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| chrestomathy | (noun) a selection of passages from different authors that is compiled as an aid in learning a language | - |
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| christ | (noun) any expected deliverer | Synonyms: messiah |
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| christella | (noun) any of several tropical ferns of the genus Christella having thin brittle fronds | - |
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| christen | (verb) administer baptism to | Synonyms: baptise, baptize |
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| christening | (noun) giving a Christian name at baptism | - |
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| christian | (adjective) following the teachings or manifesting the qualities or spirit of Jesus Christ | - |
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| christianly | (adjective) becoming to or like a Christian | - |
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| christless | (adjective) not believing in Christ | Synonyms: nonchristian |
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| christlike | (adjective) resembling or showing the spirit of Christ | Synonyms: christly |
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| christly | (adjective) resembling or showing the spirit of Christ | Synonyms: christlike |
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| chromaesthesia | (noun) a form of synesthesia in which nonvisual stimulation results in the experience of color sensations | Synonyms: chromesthesia |
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| chromesthesia | (noun) a form of synesthesia in which nonvisual stimulation results in the experience of color sensations | Synonyms: chromaesthesia |
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| chromoblastomycosis | (noun) a fungal infection characterized by itchy warty nodules on the skin | - |
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| chromoplast | (noun) plastid containing pigments other than chlorophyll usually yellow or orange carotenoids | - |
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| circumstance | (noun) information that should be kept in mind when making a decision | Synonyms: condition, consideration |
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| (noun) formal ceremony about important occasions | - |
| (noun) a condition that accompanies or influences some event or activity | - |
| (noun) the set of facts or circumstances that surround a situation or event | Synonyms: context, setting |
| circumstances | (noun) a person's financial situation (good or bad) | - |
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| (noun) your overall circumstances or condition in life (including everything that happens to you) | Synonyms: destiny, fate, fortune, lot, luck, portion |
| circumstantial | (adjective) fully detailed and specific about particulars | - |
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| circumstantially | (adverb) insofar as the circumstances are concerned | - |
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| (adverb) without advance planning | Synonyms: accidentally, by chance, unexpectedly |
| (adverb) in minute detail | Synonyms: minutely |
| (adverb) according to circumstances | - |
| circumstantiate | (verb) give circumstantial evidence for | - |
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| cirrostratus | (noun) a thin uniform layer of hazy cloud at high altitude | Synonyms: cirrostratus cloud |
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| cistern | (noun) an artificial reservoir for storing liquids; especially an underground tank for storing rainwater | - |
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| (noun) a tank that holds the water used to flush a toilet | Synonyms: water tank |
| (noun) a sac or cavity containing fluid especially lymph or cerebrospinal fluid | Synonyms: cisterna |
| cisterna | (noun) a sac or cavity containing fluid especially lymph or cerebrospinal fluid | Synonyms: cistern |
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| cistron | (noun) (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity | Synonyms: factor, gene |
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| cladistics | (noun) a taxonomic system of classifying species based on the branching patterns of cladograms that are built to infer phylogenetic relations | Synonyms: cladistic analysis |
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