| celery | (noun) stalks eaten raw or cooked or used as seasoning | - |
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| (noun) widely cultivated herb with aromatic leaf stalks that are eaten raw or cooked | Synonyms: Apium graveolens dulce, cultivated celery |
| celesta | (noun) a musical instrument consisting of graduated steel plates that are struck by hammers activated by a keyboard | - |
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| celestite | (noun) a mineral consisting of strontium sulphate | - |
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| celibacy | (noun) abstaining from sexual relations (as because of religious vows) | Synonyms: chastity, sexual abstention |
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| (noun) an unmarried status | - |
| celibate | (noun) an unmarried person who has taken a religious vow of chastity | - |
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| celiocentesis | (noun) removal of fluid from the abdomen by centesis | - |
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| celioma | (noun) an abdominal tumor | - |
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| celioscopy | (noun) endoscopic examination of the abdomen through the abdominal wall | - |
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| cell | (noun) (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals | - |
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| (noun) a device that delivers an electric current as the result of a chemical reaction | Synonyms: electric cell |
| (noun) a room where a prisoner is kept | Synonyms: jail cell, prison cell |
| (noun) small room in which a monk or nun lives | Synonyms: cubicle |
| (noun) any small compartment | - |
| (noun) a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver | Synonyms: cellphone, cellular phone, cellular telephone, mobile phone |
| (noun) a small unit serving as part of or as the nucleus of a larger political movement | Synonyms: cadre |
| cellar | (noun) the lowermost portion of a structure partly or wholly below ground level; often used for storage | Synonyms: basement |
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| (noun) storage space where wines are stored | Synonyms: wine cellar |
| (noun) an excavation where root vegetables are stored | Synonyms: root cellar |
| cellarage | (noun) a storage area in a cellar | - |
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| (noun) a charge for storing goods in a cellar | - |
| cellaret | (noun) sideboard with compartments for holding bottles | Synonyms: minibar |
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| cellblock | (noun) a division of a prison (usually consisting of several cells) | Synonyms: ward |
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| cellist | (noun) someone who plays a violoncello | Synonyms: violoncellist |
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| cello | (noun) a large stringed instrument; seated player holds it upright while playing | Synonyms: violoncello |
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| cellophane | (noun) a transparent paperlike product that is impervious to moisture and used to wrap candy or cigarettes etc. | - |
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| cellphone | (noun) a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver | Synonyms: cell, cellular phone, cellular telephone, mobile phone |
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| cellularity | (noun) the state of having cells | - |
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| cellulite | (noun) lumpy deposits of body fat especially on women's thighs etc. | - |
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| cellulitis | (noun) an inflammation of body tissue (especially that below the skin) characterized by fever and swelling and redness and pain | - |
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| celluloid | (noun) a medium that disseminates moving pictures | Synonyms: cinema, film |
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| (noun) highly flammable substance made from cellulose nitrate and camphor; used in e.g. motion-picture and X-ray film; its use has decreased with the development of nonflammable thermoplastics | - |
| cellulose | (noun) a polysaccharide that is the chief constituent of all plant tissues and fibers | - |
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| cellulosic | (noun) a plastic made from cellulose (or a derivative of cellulose) | - |
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| celom | (noun) a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity | Synonyms: celoma, coelom |
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| celoma | (noun) a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity | Synonyms: celom, coelom |
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| celtuce | (noun) leaves having celery-like stems eaten raw or cooked | - |
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| (noun) lettuce valued especially for its edible stems | Synonyms: Lactuca sativa asparagina, stem lettuce |
| cembalo | (noun) a clavier with strings that are plucked by plectra mounted on pivots | Synonyms: harpsichord |
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| cement | (noun) a specialized bony substance covering the root of a tooth | Synonyms: cementum |
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| (noun) a building material that is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar | - |
| (noun) something that hardens to act as adhesive material | - |
| (noun) concrete pavement is sometimes referred to as cement | - |
| (noun) any of various materials used by dentists to fill cavities in teeth | - |
| cementite | (noun) a chemical compound that is a constituent of steel and cast iron; very hard and brittle | Synonyms: iron carbide |
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| cementum | (noun) a specialized bony substance covering the root of a tooth | Synonyms: cement |
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| cemetery | (noun) a tract of land used for burials | Synonyms: burial ground, burial site, burying ground, graveyard, memorial park, necropolis |
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| cenobite | (noun) a member of a religious order living in common | Synonyms: coenobite |
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| cenogenesis | (noun) introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution) | Synonyms: caenogenesis, cainogenesis, kainogenesis, kenogenesis |
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| cenotaph | (noun) a monument built to honor people whose remains are interred elsewhere or whose remains cannot be recovered | Synonyms: empty tomb |
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| censer | (noun) a container for burning incense (especially one that is swung on a chain in a religious ritual) | Synonyms: thurible |
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| censor | (noun) a person who is authorized to read publications or correspondence or to watch theatrical performances and suppress in whole or in part anything considered obscene or politically unacceptable | - |
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| (noun) someone who censures or condemns | - |
| censoring | (noun) deleting parts of publications or correspondence or theatrical performances | Synonyms: censorship |
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| (noun) counterintelligence achieved by banning or deleting any information of value to the enemy | Synonyms: censorship, security review |
| censorship | (noun) deleting parts of publications or correspondence or theatrical performances | Synonyms: censoring |
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| (noun) counterintelligence achieved by banning or deleting any information of value to the enemy | Synonyms: censoring, security review |
| censure | (noun) harsh criticism or disapproval | Synonyms: animadversion |
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| (noun) the state of being excommunicated | Synonyms: exclusion, excommunication |
| census | (noun) a periodic count of the population | Synonyms: nose count, nosecount |
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| cent | (noun) a coin worth one-hundredth of the value of the basic unit | Synonyms: centime, penny |
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| (noun) a fractional monetary unit of several countries | - |
| cental | (noun) a United States unit of weight equivalent to 100 pounds | Synonyms: centner, cwt, hundredweight, quintal, short hundredweight |
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| centare | (noun) a unit of measurement for area, defined as the area of a square with sides of exactly 1 metre; a centiare is 1/100th of an are | Synonyms: square meter, square metre |
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| centas | (noun) 100 centas equal 1 litas in Lithuania | - |
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| centaur | (noun) (classical mythology) a mythical being that is half man and half horse | - |
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| centaury | (noun) any plant of the genus Centaurea | - |
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| (noun) any of various plants of the genus Centaurium | - |
| centavo | (noun) a fractional monetary unit of several countries: El Salvador and Sao Tome and Principe and Brazil and Argentina and Bolivia and Colombia and Cuba and the Dominican Republic and Ecuador and El Salvador and Guatemala and Honduras and Mexico and Nicaragua and Peru and the Philippines and Portugal | - |
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| centenarian | (noun) someone who is at least 100 years old | - |
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| centenary | (noun) the 100th anniversary (or the celebration of it) | Synonyms: centennial |
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| centennial | (noun) the 100th anniversary (or the celebration of it) | Synonyms: centenary |
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| center | (noun) a position on a basketball team of the player who participates in the jump that starts the game | Synonyms: centre |
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| (noun) (American football) the position of the player on the line of scrimmage who puts the ball in play | Synonyms: centre |
| (noun) the position on a hockey team of the player who participates in the face off at the beginning of the game | Synonyms: centre |
| (noun) a building dedicated to a particular activity | Synonyms: centre |
| (noun) mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace | Synonyms: centre, mall, plaza, shopping center, shopping centre, shopping mall |
| (noun) the piece of ground in the outfield directly ahead of the catcher | Synonyms: center field, centerfield, centre |
| (noun) a cluster of nerve cells governing a specific bodily process | Synonyms: centre, nerve center, nerve centre |
| (noun) the choicest or most essential or most vital part of some idea or experience | Synonyms: centre, core, essence, gist, heart, heart and soul, inwardness, kernel, marrow, meat, nitty-gritty, nub, pith, substance, sum |
| (noun) the object upon which interest and attention focuses | Synonyms: center of attention, centre, centre of attention |
| (noun) the sweet central portion of a piece of candy that is enclosed in chocolate or some other covering | Synonyms: centre |
| (noun) politically moderate persons; centrists | Synonyms: centre |
| (noun) the middle of a military or naval formation | Synonyms: centre |
| (noun) a point equidistant from the ends of a line or the extremities of a figure | Synonyms: centre, midpoint |
| (noun) an area that is approximately central within some larger region | Synonyms: centre, eye, heart, middle |
| (noun) a place where some particular activity is concentrated | Synonyms: centre |
| (noun) (football) the person who plays center on the line of scrimmage and snaps the ball to the quarterback | Synonyms: centre, snapper |
| (noun) (basketball) the person who plays center on a basketball team | Synonyms: centre |
| (noun) (ice hockey) the person who plays center on a hockey team | Synonyms: centre |
| centerboard | (noun) a retractable fin keel used on sailboats to prevent drifting to leeward | Synonyms: centreboard, drop keel, sliding keel |
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| centerfield | (noun) the fielding position of the player on a baseball team who is expected to field balls in the central third of the outfield | Synonyms: center field |
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| (noun) the piece of ground in the outfield directly ahead of the catcher | Synonyms: center, center field, centre |
| centerfielder | (noun) the person who plays center field | Synonyms: center fielder |
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| centerfold | (noun) a magazine center spread; especially a foldout of a large photograph or map or other feature | Synonyms: centrefold |
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| centering | (noun) (American football) putting the ball in play by passing it (between the legs) to a back | Synonyms: centring, snap |
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| (noun) the concentration of attention or energy on something | Synonyms: centring, direction, focal point, focus, focusing, focussing |
| centerline | (noun) a line that bisects a plane figure | Synonyms: center line |
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| centerpiece | (noun) something placed at the center of something else (as on a table) | Synonyms: centrepiece |
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| (noun) the central or most important feature | Synonyms: centrepiece |
| centesimo | (noun) a fractional monetary unit of several countries: Panama and Italy and Uruguay and Chile | - |
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| centesis | (noun) (surgery) the act of puncturing a body cavity or organ with a hollow needle in order to draw out fluid | - |
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| centile | (noun) (statistics) any of the 99 numbered points that divide an ordered set of scores into 100 parts each of which contains one-hundredth of the total | Synonyms: percentile |
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| centiliter | (noun) a metric unit of volume equal to one hundredth of a liter | Synonyms: centilitre, cl |
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| centilitre | (noun) a metric unit of volume equal to one hundredth of a liter | Synonyms: centiliter, cl |
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| centime | (noun) a coin worth one-hundredth of the value of the basic unit | Synonyms: cent, penny |
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| (noun) a fractional monetary unit of several countries: France and Algeria and Belgium and Burkina Faso and Burundi and Cameroon and Chad and the Congo and Gabon and Haiti and the Ivory Coast and Luxembourg and Mali and Morocco and Niger and Rwanda and Senegal and Switzerland and Togo | - |
| centimeter | (noun) a metric unit of length equal to one hundredth of a meter | Synonyms: centimetre, cm |
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| centimetre | (noun) a metric unit of length equal to one hundredth of a meter | Synonyms: centimeter, cm |
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| centimo | (noun) a fractional monetary unit of Venezuela and Costa Rica and Equatorial Guinea and Paraguay and Spain | - |
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| centipede | (noun) chiefly nocturnal predacious arthropod having a flattened body of 15 to 173 segments each with a pair of legs, the foremost pair being modified as prehensors | - |
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| centner | (noun) a United States unit of weight equivalent to 100 pounds | Synonyms: cental, cwt, hundredweight, quintal, short hundredweight |
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| (noun) in some European countries: a unit of weight equivalent to 50 kilograms | - |
| (noun) a unit of weight equal to 100 kilograms in the metric system | Synonyms: doppelzentner, hundredweight, metric hundredweight |
| central | (noun) a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication | Synonyms: exchange, telephone exchange |
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| centralisation | (noun) the act of consolidating power under a central control | Synonyms: centralization |
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| (noun) gathering to a center | Synonyms: centralization |
| centralism | (noun) the political policy of concentrating power in a central organization | - |
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| centrality | (noun) the property of being central | - |
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| centralization | (noun) the act of consolidating power under a central control | Synonyms: centralisation |
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| (noun) gathering to a center | Synonyms: centralisation |
| centrarchid | (noun) small carnivorous freshwater percoid fishes of North America usually having a laterally compressed body and metallic luster: crappies, black bass, bluegills, pumpkinseed | Synonyms: sunfish |
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| centre | (noun) a position on a basketball team of the player who participates in the jump that starts the game | Synonyms: center |
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| (noun) (American football) the position of the player on the line of scrimmage who puts the ball in play | Synonyms: center |
| (noun) the position on a hockey team of the player who participates in the face off at the beginning of the game | Synonyms: center |
| (noun) a building dedicated to a particular activity | Synonyms: center |
| (noun) the piece of ground in the outfield directly ahead of the catcher | Synonyms: center, center field, centerfield |
| (noun) mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace | Synonyms: center, mall, plaza, shopping center, shopping centre, shopping mall |
| (noun) a cluster of nerve cells governing a specific bodily process | Synonyms: center, nerve center, nerve centre |
| (noun) the choicest or most essential or most vital part of some idea or experience | Synonyms: center, core, essence, gist, heart, heart and soul, inwardness, kernel, marrow, meat, nitty-gritty, nub, pith, substance, sum |
| (noun) the object upon which interest and attention focuses | Synonyms: center, center of attention, centre of attention |
| (noun) the sweet central portion of a piece of candy that is enclosed in chocolate or some other covering | Synonyms: center |
| (noun) politically moderate persons; centrists | Synonyms: center |
| (noun) the middle of a military or naval formation | Synonyms: center |
| (noun) a point equidistant from the ends of a line or the extremities of a figure | Synonyms: center, midpoint |
| (noun) an area that is approximately central within some larger region | Synonyms: center, eye, heart, middle |
| (noun) a place where some particular activity is concentrated | Synonyms: center |
| (noun) (football) the person who plays center on the line of scrimmage and snaps the ball to the quarterback | Synonyms: center, snapper |
| (noun) (basketball) the person who plays center on a basketball team | Synonyms: center |
| (noun) (ice hockey) the person who plays center on a hockey team | Synonyms: center |
| centreboard | (noun) a retractable fin keel used on sailboats to prevent drifting to leeward | Synonyms: centerboard, drop keel, sliding keel |
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| centrefold | (noun) a magazine center spread; especially a foldout of a large photograph or map or other feature | Synonyms: centerfold |
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| centrepiece | (noun) something placed at the center of something else (as on a table) | Synonyms: centerpiece |
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| (noun) the central or most important feature | Synonyms: centerpiece |
| centrex | (noun) (CENTRal EXchange) a kind of telephone exchange | - |
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| centrifugation | (noun) the process of separating substances of different densities by the use of a centrifuge | - |
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| centrifuge | (noun) an apparatus that uses centrifugal force to separate particles from a suspension | Synonyms: extractor, separator |
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| centring | (noun) (American football) putting the ball in play by passing it (between the legs) to a back | Synonyms: centering, snap |
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| (noun) the concentration of attention or energy on something | Synonyms: centering, direction, focal point, focus, focusing, focussing |
| centriole | (noun) one of a pair of small cylindrical cell organelles near the nucleus in animal cells; composed of nine triplet microtubules and form the asters during mitosis | - |
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| centrism | (noun) a political philosophy of avoiding the extremes of left and right by taking a moderate position or course of action | Synonyms: moderatism |
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| centrist | (noun) a person who takes a position in the political center | Synonyms: middle of the roader, moderate, moderationist |
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| centroid | (noun) the center of mass of an object of uniform density | - |
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| centromere | (noun) a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape | Synonyms: kinetochore |
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| centrosome | (noun) small region of cytoplasm adjacent to the nucleus; contains the centrioles and serves to organize the microtubules | Synonyms: central body |
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| centrum | (noun) the main body of a vertebra | - |
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| centurion | (noun) (ancient Rome) the leader of 100 soldiers | - |
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| century | (noun) ten 10s | Synonyms: 100, C, hundred, one C |
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| (noun) a period of 100 years | - |
| cephalalgia | (noun) pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs | Synonyms: head ache, headache |
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| cephalaspid | (noun) extinct jawless fish of the Devonian with armored head | Synonyms: osteostracan |
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| cephalexin | (noun) a cephalosporin antibiotic (trade names Keflex and Keflin and Keftab) commonly prescribed for mild to moderately severe infections of the skin or ears or throat or lungs or urinary tract | Synonyms: Keflex, Keflin, Keftab |
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| cephalhematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalohematoma |
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| cephalitis | (noun) inflammation of the brain usually caused by a virus; symptoms include headache and neck pain and drowsiness and nausea and fever (`phrenitis' is no longer in scientific use) | Synonyms: encephalitis, phrenitis |
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| cephalochordate | (noun) fish-like animals having a notochord rather than a true spinal column | - |
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| cephaloglycin | (noun) antibiotic related to cephalosporin but no longer in common use | Synonyms: Kafocin |
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| cephalohematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalhematoma |
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