| actinomycosis | (noun) disease of cattle that can be transmitted to humans; results from infection with actinomycetes; characterized by hard swellings that exude pus through long sinuses | - |
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| alecost | (noun) tansy-scented Eurasian perennial herb with buttonlike yellow flowers; used as potherb or salad green and sometimes for potpourri or tea or flavoring; sometimes placed in genus Chrysanthemum | Synonyms: balsam herb, bible leaf, Chrysanthemum balsamita, costmary, mint geranium, Tanacetum balsamita |
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| anthracosis | (noun) lung disease caused by inhaling coal dust | Synonyms: black lung, black lung disease, coal miner's lung |
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| arccos | (noun) the inverse function of the cosine; the angle that has a cosine equal to a given number | Synonyms: arc cosine, arccosine, inverse cosine |
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| arccosecant | (noun) the angle that has a cosecant equal to a given number | Synonyms: arc cosecant, inverse cosecant |
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| arccosine | (noun) the inverse function of the cosine; the angle that has a cosine equal to a given number | Synonyms: arc cosine, arccos, inverse cosine |
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| ascospore | (noun) sexually produced fungal spore formed within an ascus | - |
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| bagascosis | (noun) alveolitis caused by inhaling bagasse (sugarcane dust) | Synonyms: bagassosis |
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| bellicoseness | (noun) a natural disposition to fight | Synonyms: bellicosity |
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| bellicosity | (noun) a natural disposition to fight | Synonyms: bellicoseness |
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| blastomycosis | (noun) any of several infections of the skin or mucous membrane caused by Blastomyces | - |
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| chromoblastomycosis | (noun) a fungal infection characterized by itchy warty nodules on the skin | - |
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| coccidioidomycosis | (noun) an infection of the lungs and skin characterized by excessive sputum and nodules | Synonyms: coccidiomycosis, desert rheumatism, valley fever |
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| coccidiomycosis | (noun) an infection of the lungs and skin characterized by excessive sputum and nodules | Synonyms: coccidioidomycosis, desert rheumatism, valley fever |
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| cocoswood | (noun) wood of the granadilla tree used for making musical instruments especially clarinets | Synonyms: cocuswood, granadilla wood |
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| corticosteroid | (noun) a steroid hormone produced by the adrenal cortex or synthesized; administered as drugs they reduce swelling and decrease the body's immune response | Synonyms: adrenal cortical steroid, corticoid |
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| corticosterone | (noun) secreted by the adrenal cortex; involved in regulating water and electrolyte balance in the body | - |
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| cos | (noun) lettuce with long dark-green leaves in a loosely packed elongated head | Synonyms: cos lettuce, romaine, romaine lettuce |
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| (noun) ratio of the adjacent side to the hypotenuse of a right-angled triangle | Synonyms: cosine |
| coscoroba | (noun) large white South American bird intermediate in some respects between ducks and swans | - |
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| cosec | (noun) ratio of the hypotenuse to the opposite side of a right-angled triangle | Synonyms: cosecant |
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| cosecant | (noun) ratio of the hypotenuse to the opposite side of a right-angled triangle | Synonyms: cosec |
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| cosh | (noun) a piece of metal covered by leather with a flexible handle; used for hitting people | Synonyms: blackjack, sap |
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| cosignatory | (noun) one of two or more signers of the same document (as a treaty or declaration) | Synonyms: cosigner |
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| cosigner | (noun) one of two or more signers of the same document (as a treaty or declaration) | Synonyms: cosignatory |
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| (noun) a signer in addition to the principal signer (to verify the authenticity of the principal signature or to provide surety) | - |
| cosine | (noun) ratio of the adjacent side to the hypotenuse of a right-angled triangle | Synonyms: cos |
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| cosiness | (noun) a state of warm snug comfort | Synonyms: coziness, snugness |
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| cosmea | (noun) any of various mostly Mexican herbs of the genus Cosmos having radiate heads of variously colored flowers and pinnate leaves; popular fall-blooming annuals | Synonyms: cosmos |
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| cosmetic | (noun) a toiletry designed to beautify the body | - |
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| cosmetician | (noun) someone who sells or applies cosmetics | - |
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| (noun) someone who works in a beauty parlor | Synonyms: beautician |
| cosmetologist | (noun) an expert in the use of cosmetics | - |
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| cosmetology | (noun) the practice of beautifying the face and hair and skin | - |
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| cosmid | (noun) (genetics) a large vector that is made from a bacteriophage and used to clone genes or gene fragments | - |
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| cosmogeny | (noun) the branch of astrophysics that studies the origin and evolution and structure of the universe | Synonyms: cosmogony, cosmology |
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| cosmogony | (noun) the branch of astrophysics that studies the origin and evolution and structure of the universe | Synonyms: cosmogeny, cosmology |
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| cosmographer | (noun) a scientist knowledgeable about cosmography | Synonyms: cosmographist |
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| cosmographist | (noun) a scientist knowledgeable about cosmography | Synonyms: cosmographer |
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| cosmography | (noun) a representation of the earth or the heavens | - |
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| (noun) the science that maps the general features of the universe; describes both heaven and earth (but without encroaching on geography or astronomy) | - |
| cosmolatry | (noun) the worship of the cosmos | - |
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| cosmologist | (noun) an astronomer who studies the evolution and space-time relations of the universe | - |
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| cosmology | (noun) the branch of astrophysics that studies the origin and evolution and structure of the universe | Synonyms: cosmogeny, cosmogony |
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| (noun) the metaphysical study of the origin and nature of the universe | - |
| cosmonaut | (noun) a person trained to travel in a spacecraft | Synonyms: astronaut, spaceman |
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| cosmopolitan | (noun) a sophisticated person who has travelled in many countries | Synonyms: cosmopolite |
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| cosmopolitanity | (noun) a state or quality of being cosmopolitan | - |
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| cosmopolite | (noun) a sophisticated person who has travelled in many countries | Synonyms: cosmopolitan |
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| cosmos | (noun) everything that exists anywhere | Synonyms: creation, existence, macrocosm, universe, world |
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| (noun) any of various mostly Mexican herbs of the genus Cosmos having radiate heads of variously colored flowers and pinnate leaves; popular fall-blooming annuals | Synonyms: cosmea |
| cosmotron | (noun) a large proton synchrotron; uses frequency modulation of an electric field to accelerate protons | - |
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| cosplayer | (noun) Someone who wears a costume from a comic book or similar media | - |
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| coss | (noun) (in India) a unit of length having different values in different localities | Synonyms: kos |
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| cost | (noun) the property of having material worth (often indicated by the amount of money something would bring if sold) | Synonyms: monetary value, price |
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| (noun) value measured by what must be given or done or undergone to obtain something | Synonyms: price, toll |
| (noun) the total spent for goods or services including money and time and labor | - |
| costa | (noun) any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates) | Synonyms: rib |
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| (noun) a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing) | - |
| costalgia | (noun) pain in the chest caused by inflammation of the muscles between the ribs | Synonyms: pleuralgia, pleurodynia |
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| costermonger | (noun) a hawker of fruit and vegetables from a barrow | Synonyms: barrow-boy, barrow-man |
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| costia | (noun) a flagellate that is the cause of the frequently fatal fish disease costiasis | Synonyms: Costia necatrix |
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| costiasis | (noun) a fatal disease of freshwater fish caused by a flagellated protozoan invading the skin | - |
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| costing | (noun) cost accounting | - |
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| costliness | (noun) the quality possessed by something with a great price or value | Synonyms: dearness, preciousness |
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| costmary | (noun) leaves used sparingly (because of bitter overtones) in sauces and soups and stuffings | - |
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| (noun) tansy-scented Eurasian perennial herb with buttonlike yellow flowers; used as potherb or salad green and sometimes for potpourri or tea or flavoring; sometimes placed in genus Chrysanthemum | Synonyms: alecost, balsam herb, bible leaf, Chrysanthemum balsamita, mint geranium, Tanacetum balsamita |
| costochondritis | (noun) inflammation at the junction of a rib and its cartilage | - |
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| costs | (noun) pecuniary reimbursement to the winning party for the expenses of litigation | - |
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| costume | (noun) the attire worn in a play or at a fancy dress ball | - |
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| (noun) the attire characteristic of a country or a time or a social class | - |
| (noun) unusual or period attire not characteristic of or appropriate to the time and place | - |
| (noun) the prevalent fashion of dress (including accessories and hair style as well as garments) | - |
| costumer | (noun) someone who designs or supplies costumes (as for a play or masquerade) | Synonyms: costume designer, costumier |
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| costumier | (noun) someone who designs or supplies costumes (as for a play or masquerade) | Synonyms: costume designer, costumer |
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| costusroot | (noun) annual herb of the eastern Himalayas (Kashmir) having purple florets and a fragrant root that yields a volatile oil used in perfumery and for preserving furs | Synonyms: Saussurea costus, Saussurea lappa |
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| cosy | (noun) a padded cloth covering to keep a teapot warm | Synonyms: cozy, tea cosy, tea cozy |
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| cryptococcosis | (noun) a fungal infection characterized by nodular lesions--first in the lungs and spreading to the nervous system | - |
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| dermatomycosis | (noun) fungal infection of the skin (especially of moist parts covered by clothing) | Synonyms: dermatophytosis |
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| dextroglucose | (noun) an isomer of glucose that is found in honey and sweet fruits | Synonyms: dextrose, grape sugar |
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| echinococcosis | (noun) infestation with larval echinococci (tapeworms) | Synonyms: hydatid disease, hydatidosis |
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| ecosystem | (noun) a system formed by the interaction of a community of organisms with their physical environment | - |
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| glucosamine | (noun) an amino derivative of glucose that is a component of many polysaccharides | - |
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| glucose | (noun) a monosaccharide sugar that has several forms; an important source of physiological energy | - |
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| glucoside | (noun) a glycoside derived from glucose | - |
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| glucosuria | (noun) the presence of abnormally high levels of glucose in the urine | - |
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| glycoside | (noun) a group of compounds derived from monosaccharides | - |
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| glycosuria | (noun) the presence of abnormally high levels of sugar in the urine | - |
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| icosahedron | (noun) any polyhedron having twenty plane faces | - |
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| intercostal | (noun) muscles between the ribs; they contract during inspiration | Synonyms: intercostal muscle, musculus intercostalis |
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| jocoseness | (noun) the trait of merry joking | Synonyms: humorousness, jocosity, merriness |
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| jocosity | (noun) the trait of merry joking | Synonyms: humorousness, jocoseness, merriness |
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| (noun) fun characterized by humor | Synonyms: jocularity |
| keratomycosis | (noun) fungal infection of the cornea | - |
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| lexicostatistics | (noun) a statistical technique used in glottochronology; used to estimate how long ago different languages evolved from a common source language | - |
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| macrocosm | (noun) everything that exists anywhere | Synonyms: cosmos, creation, existence, universe, world |
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| microcosm | (noun) a miniature model of something | - |
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| mucosa | (noun) mucus-secreting membrane lining all body cavities or passages that communicate with the exterior | Synonyms: mucous membrane |
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| mycosis | (noun) an inflammatory condition caused by a fungus | Synonyms: fungal infection |
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| mycosterol | (noun) a kind of sterol found in fungi. | - |
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| narcosis | (noun) unconsciousness induced by narcotics or anesthesia | - |
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| paracosm | (noun) a prolonged fantasy world invented by children; can have a definite geography and language and history | - |
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| pelycosaur | (noun) large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America | - |
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| pentecostalism | (noun) the principles and practices of Pentecostal religious groups; characterized by religious excitement and talking in tongues | - |
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| phycomycosis | (noun) any fungal infection caused by fungi of the Phycomycetes group | - |
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| picosecond | (noun) one trillionth (10^-12) of a second; one thousandth of a nanosecond | - |
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| psittacosaur | (noun) primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal | Synonyms: psittacosaurus |
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| psittacosaurus | (noun) primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal | Synonyms: psittacosaur |
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| psittacosis | (noun) infectious disease of birds | Synonyms: parrot disease |
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| (noun) an atypical pneumonia caused by a rickettsia microorganism and transmitted to humans from infected birds | Synonyms: ornithosis, parrot fever |
| sarcosine | (noun) a sweetish crystalline amino acid | - |
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| sarcosome | (noun) a large mitochondrion in a striated muscle fiber | - |
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| sarcosporidian | (noun) parasite of the muscles of vertebrates | Synonyms: sarcocystidean, sarcocystieian |
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| sarcostyle | (noun) one of many contractile filaments that make up a striated muscle fiber | Synonyms: myofibril, myofibrilla |
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| silicosis | (noun) a lung disease caused by inhaling particles of silica or quartz or slate | - |
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