| cartilaginification | (noun) abnormal formation of cartilage from other tissues; observed in some Asians | - |
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| carton | (noun) a box made of cardboard; opens by flaps on top | - |
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| (noun) the quantity contained in a carton | Synonyms: cartonful |
| cartoon | (noun) a humorous or satirical drawing published in a newspaper or magazine | Synonyms: sketch |
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| (noun) a film made by photographing a series of cartoon drawings to give the illusion of movement when projected in rapid sequence | Synonyms: animated cartoon, toon |
| casein | (noun) a water-base paint made with a protein precipitated from milk | Synonyms: casein paint |
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| (noun) a milk protein used in making e.g. plastics and adhesives | - |
| casern | (noun) military barracks in a garrison town | - |
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| castigation | (noun) verbal punishment | Synonyms: chastisement |
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| (noun) a severe scolding | Synonyms: bawling out, chewing out, dressing down, earful, going-over, upbraiding |
| 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 |
| catamaran | (noun) a boat with two parallel hulls held together by single deck | - |
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| catamountain | (noun) bushy-tailed wildcat of Europe that resembles the domestic cat and is regarded as the ancestor of the domestic cat | Synonyms: European wildcat, Felis silvestris |
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| catechin | (noun) a tannic acid that is extracted from black catechu as a white crystalline substance | - |
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| catechumen | (noun) a new convert being taught the principles of Christianity by a catechist | Synonyms: neophyte |
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| categorisation | (noun) the act of distributing things into classes or categories of the same type | Synonyms: assortment, categorization, classification, compartmentalisation, compartmentalization |
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| (noun) the basic cognitive process of arranging into classes or categories | Synonyms: categorization, classification, sorting |
| (noun) a group of people or things arranged by class or category | Synonyms: categorization, classification |
| categorization | (noun) the act of distributing things into classes or categories of the same type | Synonyms: assortment, categorisation, classification, compartmentalisation, compartmentalization |
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| (noun) the basic cognitive process of arranging into classes or categories | Synonyms: categorisation, classification, sorting |
| (noun) a group of people or things arranged by class or category | Synonyms: categorisation, classification |
| catheterisation | (noun) the operation of introducing a catheter into the body | Synonyms: catheterization |
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| catheterization | (noun) the operation of introducing a catheter into the body | Synonyms: catheterisation |
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| catholicon | (noun) hypothetical remedy for all ills or diseases; once sought by the alchemists | Synonyms: cure-all, nostrum, panacea |
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| cation | (noun) a positively charged ion | - |
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| catkin | (noun) a cylindrical spikelike inflorescence | Synonyms: ament |
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| cattleman | (noun) a man who raises (or tends) cattle | Synonyms: beef man, cow man |
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| (noun) a male hired hand who tends cattle and performs other duties on horseback | Synonyms: cowboy, cowman |
| cauldron | (noun) a very large pot that is used for boiling | Synonyms: caldron |
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| causation | (noun) the act of causing something to happen | Synonyms: causing |
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| cauterisation | (noun) the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing | Synonyms: cauterization, cautery |
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| cauterization | (noun) the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing | Synonyms: cauterisation, cautery |
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| caution | (noun) the trait of being cautious; being attentive to possible danger | Synonyms: carefulness, cautiousness |
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| (noun) the trait of being circumspect and prudent | Synonyms: circumspection |
| (noun) judiciousness in avoiding harm or danger | Synonyms: care, forethought, precaution |
| (noun) a warning against certain acts | Synonyms: caveat |
| cavalryman | (noun) a soldier mounted on horseback | Synonyms: trooper |
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| (noun) a soldier in a motorized army unit | Synonyms: trooper |
| caveman | (noun) someone who lives in a cave | Synonyms: cave dweller, cave man, troglodyte |
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| cavern | (noun) a large cave or a large chamber in a cave | - |
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| (noun) any large dark enclosed space | - |
| cayman | (noun) a semiaquatic reptile of Central and South America that resembles an alligator but has a more heavily armored belly | Synonyms: caiman |
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| celebration | (noun) any joyous diversion | Synonyms: festivity |
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| (noun) the public performance of a sacrament or solemn ceremony with all appropriate ritual | Synonyms: solemnisation, solemnization |
| (noun) a joyful occasion for special festivities to mark some happy event | Synonyms: jubilation |
| centenarian | (noun) someone who is at least 100 years old | - |
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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 |
| centralization | (noun) the act of consolidating power under a central control | Synonyms: centralisation |
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| (noun) gathering to a center | Synonyms: centralisation |
| centrifugation | (noun) the process of separating substances of different densities by the use of a centrifuge | - |
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| centurion | (noun) (ancient Rome) the leader of 100 soldiers | - |
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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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| cephaloglycin | (noun) antibiotic related to cephalosporin but no longer in common use | Synonyms: Kafocin |
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| cephalosporin | (noun) one of several broad spectrum antibiotic substances obtained from fungi and related to penicillin (trade names Mefoxin); addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity | Synonyms: Mefoxin |
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| cephalothin | (noun) a semisynthetic analogue of cephalosporin | - |
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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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| 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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| cerebration | (noun) the process of using your mind to consider something carefully | Synonyms: intellection, mentation, thinking, thought, thought process |
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| ceresin | (noun) a white wax extracted from ozokerite | - |
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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 |
| cerivastatin | (noun) an oral drug (trade name Baycol) to reduce blood cholesterol levels | Synonyms: Baycol |
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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 |
| cerulean | (noun) a light shade of blue | Synonyms: azure, lazuline, sapphire, sky-blue |
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| cerumen | (noun) a soft yellow wax secreted by glands in the ear canal | Synonyms: earwax |
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| cesarean | (noun) the delivery of a fetus by surgical incision through the abdominal wall and uterus (from the belief that Julius Caesar was born that way) | Synonyms: abdominal delivery, C-section, caesarean, caesarean delivery, caesarean section, caesarian, caesarian delivery, caesarian section, cesarean delivery, cesarean section, cesarian, cesarian section |
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| cesarian | (noun) the delivery of a fetus by surgical incision through the abdominal wall and uterus (from the belief that Julius Caesar was born that way) | Synonyms: abdominal delivery, C-section, caesarean, caesarean delivery, caesarean section, caesarian, caesarian delivery, caesarian section, cesarean, cesarean delivery, cesarean section, cesarian section |
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| cessation | (noun) a stopping | Synonyms: surcease |
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| cession | (noun) the act of ceding | Synonyms: ceding |
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| cetacean | (noun) large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales, dolphins, porpoises, narwhals | Synonyms: blower, cetacean mammal |
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| chaetodon | (noun) any fish of the genus Chaetodon | - |
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| chagrin | (noun) strong feelings of embarrassment | Synonyms: humiliation, mortification |
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| chain | (noun) a series of (usually metal) rings or links fitted into one another to make a flexible ligament | - |
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| (noun) a necklace made by stringing objects together | Synonyms: strand, string |
| (noun) anything that acts as a restraint | - |
| (noun) a linked or connected series of objects | - |
| (noun) a series of things depending on each other as if linked together | Synonyms: concatenation |
| (noun) (business) a number of similar establishments (stores or restaurants or banks or hotels or theaters) under one ownership | - |
| (noun) (chemistry) a series of linked atoms (generally in an organic molecule) | Synonyms: chemical chain |
| (noun) a series of hills or mountains | Synonyms: chain of mountains, mountain chain, mountain range, range, range of mountains |
| (noun) a unit of length | - |
| chairman | (noun) the male officer who presides at the meetings of an organization | - |
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| chairperson | (noun) the officer who presides at the meetings of an organization | Synonyms: chair, president |
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| chairwoman | (noun) the female officer who presides at the meetings of an organization | - |
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| chalazion | (noun) a small sebaceous cyst of the eyelid resulting when a Meibomian gland is blocked | Synonyms: Meibomian cyst |
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| chaldron | (noun) a British imperial capacity measure (liquid or dry) equal to 36 bushels | - |
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| chamaeleon | (noun) lizard of Africa and Madagascar able to change skin color and having a projectile tongue | Synonyms: chameleon |
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| chamberlain | (noun) the treasurer of a municipal corporation | - |
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| (noun) an officer who manages the household of a king or nobleman | - |
| chameleon | (noun) lizard of Africa and Madagascar able to change skin color and having a projectile tongue | Synonyms: chamaeleon |
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| (noun) a changeable or inconstant person | - |
| chamfron | (noun) medieval plate armor to protect a horse's head | Synonyms: chanfron, front-stall, frontstall, testiere |
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| champaign | (noun) extensive tract of level open land | Synonyms: field, plain |
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| champion | (noun) someone who fights for a cause | Synonyms: fighter, hero, paladin |
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| (noun) someone who has won first place in a competition | Synonyms: champ, title-holder |
| (noun) a person who backs a politician or a team etc. | Synonyms: admirer, booster, friend, protagonist, supporter |
| (noun) someone who is dazzlingly skilled in any field | Synonyms: ace, adept, genius, hotshot, maven, mavin, sensation, star, superstar, virtuoso, whiz, whizz, wiz, wizard |
| chanfron | (noun) medieval plate armor to protect a horse's head | Synonyms: chamfron, front-stall, frontstall, testiere |
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| channelisation | (noun) management through specified channels of communication | Synonyms: canalisation, canalization, channelization |
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| channelization | (noun) management through specified channels of communication | Synonyms: canalisation, canalization, channelisation |
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| chaperon | (noun) one who accompanies and supervises a young woman or gatherings of young people | Synonyms: chaperone |
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| chaplain | (noun) a clergyman ministering to some institution | - |
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| chapman | (noun) archaic term for an itinerant peddler | - |
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| characin | (noun) any freshwater fish of the family Characinidae | Synonyms: characid, characin fish |
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| 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 |
| 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 |
| chargeman | (noun) a workman employed to blast with explosives | Synonyms: blaster |
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| charlatan | (noun) a flamboyant deceiver; one who attracts customers with tricks or jokes | Synonyms: mountebank |
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| charman | (noun) a human male employed to do housework | - |
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| charwoman | (noun) a human female employed to do housework | Synonyms: char, cleaning lady, cleaning woman |
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| chawbacon | (noun) a person who is not very intelligent or interested in culture | Synonyms: bumpkin, hayseed, hick, rube, yahoo, yokel |
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| checkrein | (noun) a rein designed to keep the horse's head in the desired position | Synonyms: bearing rein |
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| chelation | (noun) the process of forming a ring by forming one or more hydrogen bonds | - |
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| (noun) (medicine) the process of removing a heavy metal from the bloodstream by means of a chelate as in treating lead or mercury poisoning | - |
| chelonian | (noun) a reptile of the order Chelonia | Synonyms: chelonian reptile |
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| chemisorption | (noun) adsorption (especially when irreversible) by means of chemical instead of physical forces | Synonyms: chemosorption |
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| chemosorption | (noun) adsorption (especially when irreversible) by means of chemical instead of physical forces | Synonyms: chemisorption |
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| chessman | (noun) any of 16 white and 16 black pieces used in playing the game of chess | Synonyms: chess piece |
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| chevron | (noun) an inverted V-shaped charge | - |
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| (noun) V-shaped sleeve badge indicating military rank and service | Synonyms: grade insignia, stripe, stripes |
| chevrotain | (noun) very small hornless deer-like ruminant of tropical Asia and west Africa | Synonyms: mouse deer |
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| chicken | (noun) a domestic fowl bred for flesh or eggs; believed to have been developed from the red jungle fowl | Synonyms: Gallus gallus |
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| (noun) a foolhardy competition; a dangerous activity that is continued until one competitor becomes afraid and stops | - |
| (noun) the flesh of a chicken used for food | Synonyms: poulet, volaille |
| (noun) a person who lacks confidence, is irresolute and wishy-washy | Synonyms: crybaby, wimp |
| chieftain | (noun) the head of a tribe or clan | Synonyms: chief, headman, tribal chief |
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| (noun) the leader of a group of people | Synonyms: captain |
| chiffon | (noun) a sheer fabric of silk or rayon | - |
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| chignon | (noun) a roll of hair worn at the nape of the neck | - |
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| chilblain | (noun) inflammation of the hands and feet caused by exposure to cold and moisture | Synonyms: chilblains, pernio |
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| chin | (noun) the protruding part of the lower jaw | Synonyms: mentum |
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| chincapin | (noun) small nut of either of two small chestnut trees of the southern United States; resembles a hazelnut | Synonyms: chinkapin, chinquapin |
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| chinchillon | (noun) gregarious burrowing rodent larger than the chinchillas | Synonyms: Lagostomus maximus, viscacha |
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| chinkapin | (noun) small nut of either of two small chestnut trees of the southern United States; resembles a hazelnut | Synonyms: chincapin, chinquapin |
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| chinquapin | (noun) small nut of either of two small chestnut trees of the southern United States; resembles a hazelnut | Synonyms: chincapin, chinkapin |
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| (noun) shrubby chestnut tree of southeastern United States having small edible nuts | Synonyms: Allegheny chinkapin, Castanea pumila, dwarf chestnut, eastern chinquapin |
| (noun) shrubby tree closely related to the Allegheny chinkapin but with larger leaves; southern midwestern United States | Synonyms: Castanea ozarkensis, Ozark chinkapin, Ozark chinquapin |
| chiropteran | (noun) nocturnal mouselike mammal with forelimbs modified to form membranous wings and anatomical adaptations for echolocation by which they navigate | Synonyms: bat |
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| chitin | (noun) a tough semitransparent horny substance; the principal component of the exoskeletons of arthropods and the cell walls of certain fungi | - |
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