| blastomere | (noun) any cell resulting from cleavage of a fertilized egg | - |
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| blastomycete | (noun) any of various yeastlike budding fungi of the genus Blastomyces; cause disease in humans and other animals | - |
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| blastomycosis | (noun) any of several infections of the skin or mucous membrane caused by Blastomyces | - |
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| blastopore | (noun) the opening into the archenteron | - |
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| blastosphere | (noun) early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs | Synonyms: blastula |
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| blastula | (noun) early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs | Synonyms: blastosphere |
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| boast | (noun) speaking of yourself in superlatives | Synonyms: boasting, jactitation, self-praise |
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| boaster | (noun) a very boastful and talkative person | Synonyms: blowhard, braggart, bragger, line-shooter, vaunter |
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| boastfulness | (noun) outspoken conceit | Synonyms: vainglory |
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| boasting | (noun) speaking of yourself in superlatives | Synonyms: boast, jactitation, self-praise |
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| bombast | (noun) pompous or pretentious talk or writing | Synonyms: blah, claptrap, fustian, rant |
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| breakfast | (noun) the first meal of the day (usually in the morning) | - |
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| breast | (noun) the part of an animal's body that corresponds to a person's chest | - |
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| (noun) either of two soft fleshy milk-secreting glandular organs on the chest of a woman | Synonyms: boob, bosom, knocker, tit, titty |
| (noun) the front of the trunk from the neck to the abdomen | Synonyms: chest |
| (noun) meat carved from the breast of a fowl | Synonyms: white meat |
| breastbone | (noun) the flat bone that articulates with the clavicles and the first seven pairs of ribs | Synonyms: sternum |
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| breastpin | (noun) a decorative pin worn by women | Synonyms: broach, brooch |
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| breastplate | (noun) armor plate that protects the chest; the front part of a cuirass | Synonyms: aegis, egis |
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| breaststroke | (noun) a swimming stroke; the arms are extended together in front of the head and swept back on either side accompanied by a frog kick | - |
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| breaststroker | (noun) someone who swims the breaststroke | - |
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| breastwork | (noun) fortification consisting of a low wall | Synonyms: parapet |
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| broadcast | (noun) message that is transmitted by radio or television | - |
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| (noun) a radio or television show | Synonyms: program, programme |
| broadcaster | (noun) a mechanical device for scattering something (seed or fertilizer or sand etc.) in all directions | Synonyms: spreader |
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| (noun) someone who broadcasts on radio or television | - |
| broadcasting | (noun) taking part in a radio or tv program | - |
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| (noun) a medium that disseminates via telecommunications | Synonyms: broadcast medium |
| burgomaster | (noun) a mayor of a municipality in Germany or Holland or Flanders or Austria | - |
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| cadaster | (noun) a public register showing the details of ownership and value of land; made for the purpose of taxation | Synonyms: cadastre |
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| cadastre | (noun) a public register showing the details of ownership and value of land; made for the purpose of taxation | Synonyms: cadaster |
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| canasta | (noun) a form of rummy using two decks of cards and four jokers; jokers and deuces are wild; the object is to form groups of the same rank | Synonyms: basket rummy, meld |
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| cardcastle | (noun) an unstable construction with playing cards | Synonyms: card-house, cardhouse, house of cards |
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| cast | (noun) the act of throwing dice | Synonyms: roll |
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| (noun) the act of throwing a fishing line out over the water by means of a rod and reel | Synonyms: casting |
| (noun) a violent throw | Synonyms: hurl |
| (noun) object formed by a mold | Synonyms: casting |
| (noun) bandage consisting of a firm covering (often made of plaster of Paris) that immobilizes broken bones while they heal | Synonyms: plaster bandage, plaster cast |
| (noun) container into which liquid is poured to create a given shape when it hardens | Synonyms: mold, mould |
| (noun) the visual appearance of something or someone | Synonyms: form, shape |
| (noun) the actors in a play | Synonyms: cast of characters, dramatis personae |
| (noun) the distinctive form in which a thing is made | Synonyms: mold, mould, stamp |
| castanets | (noun) (used in the plural) a percussion instrument consisting of a pair of hollow pieces of wood or bone (usually held between the thumb and fingers) that are made to click together (as by Spanish dancers) in rhythm with the dance | Synonyms: bones, clappers, finger cymbals |
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| castaway | (noun) a shipwrecked person | Synonyms: shipwreck survivor |
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| (noun) a person who is rejected (from society or home) | Synonyms: Ishmael, outcast, pariah |
| caste | (noun) in some social insects (such as ants) a physically distinct individual or group of individuals specialized to perform certain functions in the colony | - |
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| (noun) a social class separated from others by distinctions of hereditary rank or profession or wealth | - |
| (noun) (Hinduism) a hereditary social class among Hindus; stratified according to ritual purity | - |
| (noun) social status or position conferred by a system based on class | - |
| caster | (noun) a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable | Synonyms: castor |
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| (noun) a shaker with a perforated top for sprinkling powdered sugar | Synonyms: castor |
| (noun) a worker who casts molten metal into finished products | - |
| 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 |
| casting | (noun) the act of creating something by casting it in a mold | Synonyms: molding |
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| (noun) the act of throwing a fishing line out over the water by means of a rod and reel | Synonyms: cast |
| (noun) the choice of actors to play particular roles in a play or movie | - |
| (noun) object formed by a mold | Synonyms: cast |
| castle | (noun) interchanging the positions of the king and a rook | Synonyms: castling |
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| (noun) a large building formerly occupied by a ruler and fortified against attack | - |
| (noun) (chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard | Synonyms: rook |
| (noun) a large and stately mansion | Synonyms: palace |
| 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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| 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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| 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 |
| 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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| 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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| 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 |
| 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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| 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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| 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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| clast | (noun) (geology) a constituent fragment of a clastic rock | - |
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| coast | (noun) the act of moving smoothly along a surface while remaining in contact with it | Synonyms: glide, slide |
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| (noun) the area within view | - |
| (noun) the shore of a sea or ocean | Synonyms: sea-coast, seacoast, seashore |
| (noun) a slope down which sleds may coast | - |
| coaster | (noun) a covering (plate or mat) that protects the surface of a table (i.e., from the condensation on a cold glass or bottle) | - |
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| (noun) someone who coasts | - |
| (noun) a resident of a coastal area | - |
| coastguard | (noun) a military service responsible for the safety of maritime traffic in coastal waters | - |
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| coastguardsman | (noun) a member of a coastguard | - |
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| coastland | (noun) land in a coastal area | - |
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| coastline | (noun) the outline of a coast | - |
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| colorcast | (noun) a television program that is broadcast in color | Synonyms: colourcast |
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| colourcast | (noun) a television program that is broadcast in color | Synonyms: colorcast |
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| conacaste | (noun) tropical South American tree having a wide-spreading crown of bipinnate leaves and coiled ear-shaped fruits; grown for shade and ornament as well as valuable timber | Synonyms: elephant's ear, Enterolobium cyclocarpa |
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| contrast | (noun) the act of distinguishing by comparing differences | - |
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| (noun) the range of optical density and tone on a photographic negative or print (or the extent to which adjacent areas on a television screen differ in brightness) | - |
| (noun) the perceptual effect of the juxtaposition of very different colors | - |
| (noun) a conceptual separation or distinction | Synonyms: demarcation, dividing line, line |
| (noun) the opposition or dissimilarity of things that are compared | Synonyms: direct contrast |
| cothromboplastin | (noun) a coagulation factor formed in the kidney under the influence of vitamin K | Synonyms: factor VII, proconvertin, stable factor |
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| cotoneaster | (noun) any shrub of the genus Cotoneaster: erect or creeping shrubs having richly colored autumn foliage and many small white to pinkish flowers followed by tiny red or black fruits | - |
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| counterblast | (noun) a vigorous and unrestrained response | - |
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| cytoplast | (noun) the intact cytoplasmic content of a cell | - |
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| dastard | (noun) a despicable coward | - |
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| dastardliness | (noun) despicable cowardice | - |
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| devastation | (noun) the termination of something by causing so much damage to it that it cannot be repaired or no longer exists | Synonyms: destruction |
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| (noun) plundering with excessive damage and destruction | Synonyms: ravaging |
| (noun) an event that results in total destruction | Synonyms: desolation |
| (noun) the feeling of being confounded or overwhelmed | - |
| (noun) the state of being decayed or destroyed | Synonyms: desolation |
| diastasis | (noun) separation of an epiphysis from the long bone to which it is normally attached without fracture of the bone | - |
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| diastema | (noun) a gap or vacant space between two teeth | - |
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| diastole | (noun) the widening of the chambers of the heart between two contractions when the chambers fill with blood | - |
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| diastrophism | (noun) the process of deformation that produces continents and ocean basins in the earth's crust | - |
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| disaster | (noun) an act that has disastrous consequences | - |
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| (noun) an event resulting in great loss and misfortune | Synonyms: calamity, cataclysm, catastrophe, tragedy |
| (noun) a state of extreme (usually irremediable) ruin and misfortune | Synonyms: catastrophe |
| distaste | (noun) a feeling of intense dislike | Synonyms: antipathy, aversion |
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| distastefulness | (noun) the quality of being offensive | Synonyms: odiousness, offensiveness |
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| (noun) extreme unpalatability to the mouth | Synonyms: disgustingness, nauseatingness, sickeningness, unsavoriness |
| downcast | (noun) a ventilation shaft through which air enters a mine | - |
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| durmast | (noun) deciduous European oak valued for its tough elastic wood | Synonyms: Quercus petraea, Quercus sessiliflora |
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| dynast | (noun) a hereditary ruler | - |
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| dynasty | (noun) a sequence of powerful leaders in the same family | - |
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| east | (noun) a location in the eastern part of a country, region, or city | - |
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| (noun) the cardinal compass point that is at 90 degrees | Synonyms: due east, E, eastward |
| (noun) the direction corresponding to the eastward cardinal compass point | - |
| easter | (noun) a wind from the east | Synonyms: east wind, easterly |
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| easterly | (noun) a wind from the east | Synonyms: east wind, easter |
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| easterner | (noun) an inhabitant of an eastern area; especially of the U.S. | - |
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| eastward | (noun) the cardinal compass point that is at 90 degrees | Synonyms: due east, E, east |
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| ecclesiastic | (noun) a clergyman or other person in religious orders | Synonyms: churchman, cleric, divine |
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| ecclesiasticism | (noun) excessive adherence to ecclesiastical forms and activities | - |
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| (noun) religion appropriate to a church and to ecclesiastical principles and practices | - |
| ecdysiast | (noun) a performer who provides erotic entertainment by undressing to music | Synonyms: exotic dancer, peeler, stripper, striptease, striptease artist, stripteaser |
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| ectoblast | (noun) the outer germ layer that develops into skin and nervous tissue | Synonyms: ectoderm, exoderm |
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| elastance | (noun) The capacity of a dielectric for opposing an electric charge | Synonyms: electrical elastance |
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| elastase | (noun) a pancreatic enzyme that catalyzes the hydrolysis of elastin | - |
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| elastic | (noun) a fabric made of yarns containing an elastic material | - |
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| (noun) a narrow band of elastic rubber used to hold things (such as papers) together | Synonyms: elastic band, rubber band |
| elasticity | (noun) the tendency of a body to return to its original shape after it has been stretched or compressed | Synonyms: snap |
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| elastin | (noun) a fibrous scleroprotein found in elastic tissues such as the walls of arteries | - |
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| elastomer | (noun) any of various elastic materials that resemble rubber (resumes its original shape when a deforming force is removed) | - |
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| elastosis | (noun) breakdown of elastic tissue (as the loss of elasticity in the skin of elderly people that results from degeneration of connective tissue) | - |
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| endoblast | (noun) the inner germ layer that develops into the lining of the digestive and respiratory systems | Synonyms: endoderm, entoblast, entoderm, hypoblast |
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| enthusiast | (noun) an ardent and enthusiastic supporter of some person or activity | Synonyms: partisan, partizan |
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| (noun) a person having a strong liking for something | Synonyms: fancier |