| abrasion | (noun) the wearing down of rock particles by friction due to water or wind or ice | Synonyms: attrition, detrition, grinding |
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| (noun) erosion by friction | Synonyms: attrition, corrasion, detrition |
| (noun) an abraded area where the skin is torn or worn off | Synonyms: excoriation, scrape, scratch |
| abrasive | (noun) a substance that abrades or wears down | Synonyms: abradant, abrasive material |
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| abrasiveness | (noun) the roughness of a substance that causes abrasions | Synonyms: harshness, scratchiness |
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| (noun) the quality of being sharply disagreeable | - |
| agerasia | (noun) youthful appearance in an old person | - |
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| aminopherase | (noun) a class of transferases that catalyze transamination (that transfer an amino group from an amino acid to another compound) | Synonyms: aminotransferase, transaminase |
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| aminotransferase | (noun) a class of transferases that catalyze transamination (that transfer an amino group from an amino acid to another compound) | Synonyms: aminopherase, transaminase |
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| anticholinesterase | (noun) a medicine that inhibits cholinesterase by combining with it and so has a cholinergic effect | - |
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| antiphrasis | (noun) the use of a word in a sense opposite to its normal sense (especially in irony) | - |
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| arras | (noun) a wall hanging of heavy handwoven fabric often with pictorial designs | Synonyms: tapestry |
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| bluegrass | (noun) a type of country music played at a rapid tempo on banjos and guitars | - |
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| (noun) any of various grasses of the genus Poa | Synonyms: blue grass |
| brashness | (noun) the trait of being rash and hasty | - |
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| (noun) tasteless showiness | Synonyms: flashiness, garishness, gaudiness, glitz, loudness, meretriciousness, tawdriness |
| brasier | (noun) large metal container in which coal or charcoal is burned; warms people who must stay outside for long times | Synonyms: brazier |
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| brass | (noun) a wind instrument that consists of a brass tube (usually of variable length) that is blown by means of a cup-shaped or funnel-shaped mouthpiece | Synonyms: brass instrument |
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| (noun) a memorial made of brass | Synonyms: memorial tablet, plaque |
| (noun) an ornament or utensil made of brass | - |
| (noun) impudent aggressiveness | Synonyms: boldness, cheek, face, nerve |
| (noun) the persons (or committees or departments etc.) who make up a body for the purpose of administering something | Synonyms: administration, establishment, governance, governing body, organisation, organization |
| (noun) the section of a band or orchestra that plays brass instruments | Synonyms: brass section |
| (noun) an alloy of copper and zinc | - |
| brassard | (noun) armor plate that protects the arm | - |
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| brassavola | (noun) any of various tropical American orchids with usually solitary fleshy leaves and showy white to green nocturnally fragrant blossoms solitary or in racemes of up to 7 | - |
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| brasserie | (noun) a small restaurant serving beer and wine as well as food; usually cheap | - |
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| brassie | (noun) (formerly) a golfing wood with a face more elevated than a driver but less than a spoon | - |
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| brassiere | (noun) an undergarment worn by women to support their breasts | Synonyms: bandeau, bra |
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| bristlegrass | (noun) grasses of grasslands and woodlands having large gracefully arching spikes with long bristles beneath each spikelet | Synonyms: bristle grass |
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| bromegrass | (noun) any of various woodland and meadow grasses of the genus Bromus; native to temperate regions | Synonyms: brome |
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| bunchgrass | (noun) any of various grasses of many genera that grow in tufts or clumps rather than forming a sod or mat; chiefly of western United States | Synonyms: bunch grass |
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| burgrass | (noun) a grass of the genus Cenchrus | Synonyms: bur grass |
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| catchphrase | (noun) a phrase that has become a catchword | Synonyms: catch phrase |
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| ceras | (noun) one of the often brightly colored and branching hornlike structures on the back of the nudibranch (and other related mollusks) that serve as gills | - |
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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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| cheatgrass | (noun) annual or winter annual grass with softly hairy leaves of the Mediterranean | Synonyms: Bromus tectorum, downy brome, downy bromegrass, downy cheat, downy chess, drooping brome |
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| cholinesterase | (noun) an enzyme that hydrolyses acetylcholine (into choline and acetic acid) | - |
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| chrysoprase | (noun) a green variety of chalcedony valued as a gemstone | - |
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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 |
| cordgrass | (noun) any of several perennial grasses of the genus Spartina; some important as coastal soil binders | Synonyms: cord grass |
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| corrasion | (noun) erosion by friction | Synonyms: abrasion, attrition, detrition |
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| crabgrass | (noun) grasses with creeping stems that root freely; a pest in lawns | Synonyms: crab grass, finger grass |
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| crash | (noun) the act of colliding with something | Synonyms: smash |
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| (noun) a serious accident (usually involving one or more vehicles) | Synonyms: wreck |
| (noun) a loud resonant repeating noise | Synonyms: clang, clangor, clangoring, clangour, clank, clash |
| (noun) a sudden large decline of business or the prices of stocks (especially one that causes additional failures) | Synonyms: collapse |
| (noun) (computer science) an event that causes a computer system to become inoperative | - |
| crasher | (noun) someone who gets in (to a party) without an invitation or without paying | Synonyms: gatecrasher, unwelcome guest |
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| crassitude | (noun) the quality of being crass--devoid of refinement | Synonyms: crassness |
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| crassness | (noun) the quality of being crass--devoid of refinement | Synonyms: crassitude |
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| cuirass | (noun) medieval body armor that covers the chest and back | - |
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| cuirassier | (noun) a cavalryman equipped with a cuirass | - |
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| curassow | (noun) large crested arboreal game bird of warm parts of the Americas having long legs and tails; highly esteemed as game and food | - |
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| dallisgrass | (noun) tall tufted perennial tropical American grass naturalized as pasture and forage grass in southern United States | Synonyms: dallis grass, paspalum, Paspalum dilatatum |
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| degras | (noun) a semisolid emulsion produced by the treatment of certain skins with oxidized fish oil, which extracts their soluble albuminoids. | - |
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| dermabrasion | (noun) removal of scars or tattoos by anesthetizing the skin surface and then sanding or scraping off some of the outer skin layer | - |
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| dinoceras | (noun) a variety of dinocerate | Synonyms: uintathere |
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| disembarrassment | (noun) something that extricates you from embarrassment | - |
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| dyscrasia | (noun) an abnormal or physiologically unbalanced state of the body | - |
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| ectoparasite | (noun) any external parasitic organism (as fleas) | Synonyms: ectozoan, ectozoon, epizoan, epizoon |
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| eelgrass | (noun) submerged marine plant with very long narrow leaves found in abundance along North Atlantic coasts | Synonyms: grass wrack, sea wrack, Zostera marina |
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| (noun) submerged aquatic plant with ribbonlike leaves; Old World and Australia | Synonyms: tape grass, Vallisneria spiralis, wild celery |
| embarrassment | (noun) extreme excess | Synonyms: overplus, plethora, superfluity |
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| (noun) some event that causes someone to be embarrassed | - |
| (noun) the shame you feel when your inadequacy or guilt is made public | - |
| (noun) the state of being embarrassed (usually by some financial inadequacy) | - |
| embrasure | (noun) an opening (in a wall or ship or armored vehicle) for firing through | Synonyms: port, porthole |
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| endoparasite | (noun) any of various parasites that live in the internal organs of animals (especially intestinal worms) | Synonyms: endozoan, entoparasite, entozoan, entozoon |
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| entoparasite | (noun) any of various parasites that live in the internal organs of animals (especially intestinal worms) | Synonyms: endoparasite, endozoan, entozoan, entozoon |
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| eraser | (noun) an implement used to erase something | - |
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| erasure | (noun) deletion by an act of expunging or erasing | Synonyms: expunction, expunging |
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| (noun) a correction made by erasing | - |
| (noun) a surface area where something has been erased | - |
| extrasystole | (noun) a premature systole resulting in a momentary cardiac arrhythmia | - |
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| gatecrasher | (noun) someone who gets in (to a party) without an invitation or without paying | Synonyms: crasher, unwelcome guest |
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| girasol | (noun) tall perennial with hairy stems and leaves; widely cultivated for its large irregular edible tubers | Synonyms: Helianthus tuberosus, Jerusalem artichoke, Jerusalem artichoke sunflower |
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| (noun) an opal with flaming orange and yellow and red colors | Synonyms: fire opal |
| grasp | (noun) the act of grasping | Synonyms: clasp, clench, clutch, clutches, grip, hold |
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| (noun) an intellectual hold or understanding | Synonyms: grip |
| (noun) understanding of the nature or meaning or quality or magnitude of something | Synonyms: appreciation, hold |
| (noun) the limit of capability | Synonyms: compass, range, reach |
| graspability | (noun) The quality of being able to be understood or comprehended; understandability. | - |
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| grasping | (noun) the act of gripping something firmly with the hands (or the tentacles) | Synonyms: prehension, seizing, taking hold |
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| (noun) understanding with difficulty | - |
| grass | (noun) street names for marijuana | Synonyms: dope, gage, green goddess, locoweed, Mary Jane, pot, sens, sess, skunk, smoke, weed |
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| (noun) bulky food like grass or hay for browsing or grazing horses or cattle | Synonyms: eatage, forage, pasturage, pasture |
| (noun) a police informer who implicates many people | Synonyms: supergrass |
| (noun) narrow-leaved green herbage: grown as lawns; used as pasture for grazing animals; cut and dried as hay | - |
| grassfinch | (noun) usually brightly-colored Australian weaverbirds; often kept as cage birds | Synonyms: grass finch |
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| grassfire | (noun) an uncontrolled fire in a grassy area | Synonyms: prairie fire |
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| grasshopper | (noun) terrestrial plant-eating insect with hind legs adapted for leaping | Synonyms: hopper |
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| (noun) a cocktail made of creme de menthe and cream (sometimes with creme de cacao) | - |
| grassland | (noun) land where grass or grasslike vegetation grows and is the dominant form of plant life | - |
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| harasser | (noun) a persistent attacker | Synonyms: harrier |
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| (noun) a persistent tormentor | - |
| harassment | (noun) the act of tormenting by continued persistent attacks and criticism | Synonyms: molestation |
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| (noun) a feeling of intense annoyance caused by being tormented | Synonyms: torment |
| hardinggrass | (noun) perennial grass of Australia and South Africa; introduced in North America as forage grass | Synonyms: Harding grass, Phalaris aquatica, Phalaris tuberosa, toowomba canary grass |
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| hemiparasite | (noun) a parasitic plant that contains some chlorophyll and therefore is capable of photosynthesis | Synonyms: semiparasite |
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| herrerasaur | (noun) a kind of theropod dinosaur found in Argentina | Synonyms: herrerasaurus |
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| herrerasaurus | (noun) a kind of theropod dinosaur found in Argentina | Synonyms: herrerasaur |
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| idiosyncrasy | (noun) a behavioral attribute that is distinctive and peculiar to an individual | Synonyms: foible, mannerism |
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| idocrase | (noun) a green or yellow or brown mineral consisting of a hydrated silicate; it occurs as crystals in limestone and is used a gemstone | Synonyms: vesuvian, vesuvianite |
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| infrastructure | (noun) the stock of basic facilities and capital equipment needed for the functioning of a country or area | Synonyms: base |
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| (noun) the basic structure or features of a system or organization | Synonyms: substructure |
| irascibility | (noun) a feeling of resentful anger | Synonyms: quick temper, short temper, spleen |
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| isomerase | (noun) an enzyme that catalyzes its substrate to an isomeric form | - |
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| knotgrass | (noun) low-growing weedy grass with spikelets along the leaf stems | Synonyms: Paspalum distichum |
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| lemongrass | (noun) a tropical grass native to India and Sri Lanka | Synonyms: lemon grass |
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| (noun) an aromatic oil that smells like lemon and is widely used in Asian cooking and in perfumes and medicines | Synonyms: lemon grass, lemongrass oil |
| madras | (noun) a light patterned cotton cloth | - |
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| madrasa | (noun) Muslim schools in Bangladesh and Pakistan | Synonyms: madrasah |
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| madrasah | (noun) Muslim schools in Bangladesh and Pakistan | Synonyms: madrasa |
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| marasca | (noun) Dalmatian bitter wild cherry tree bearing fruit whose juice is made into maraschino liqueur | Synonyms: marasca cherry, maraschino cherry, Prunus cerasus marasca |
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| (noun) small bitter fruit of the marasca cherry tree from whose juice maraschino liqueur is made | - |
| maraschino | (noun) cherry preserved in true or imitation maraschino liqueur | Synonyms: maraschino cherry |
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| (noun) distilled from fermented juice of bitter wild marasca cherries | Synonyms: maraschino liqueur |
| marasmus | (noun) extreme malnutrition and emaciation (especially in children); can result from inadequate intake of food or from malabsorption or metabolic disorders | - |
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| meadowgrass | (noun) any of various grasses that thrive in the presence of abundant moisture | Synonyms: meadow grass |
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| midgrass | (noun) any of various grasses of moderate height which covered the undisturbed prairie in the United States; includes most of the forage grasses of the temperate zone | - |
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| mirasol | (noun) annual sunflower grown for silage and for its seeds which are a source of oil; common throughout United States and much of North America | Synonyms: common sunflower, Helianthus annuus |
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| morass | (noun) a soft wet area of low-lying land that sinks underfoot | Synonyms: mire, quag, quagmire, slack |
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| neurasthenia | (noun) nervous breakdown (not in technical use) | - |
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| neurasthenic | (noun) a person suffering a nervous breakdown | - |
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| nutgrass | (noun) a widely distributed perennial sedge having small edible nutlike tubers | Synonyms: Cyperus rotundus, nut grass, nut sedge, nutsedge |
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| paederast | (noun) a man who has sex (usually sodomy) with a boy as the passive partner | Synonyms: child molester, pederast |
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| paederasty | (noun) sexual relations between a man and a boy (usually anal intercourse with the boy as a passive partner) | Synonyms: pederasty |
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| paraphrase | (noun) rewording for the purpose of clarification | Synonyms: paraphrasis |
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| paraphrasis | (noun) rewording for the purpose of clarification | Synonyms: paraphrase |
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| parasail | (noun) parachute that will lift a person up into the air when it is towed by a motorboat or a car | - |
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| parasailing | (noun) gliding in a parasail | Synonyms: paragliding |
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| parasitaemia | (noun) a condition in which parasites are present in the blood | Synonyms: parasitemia |
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| parasite | (noun) an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host | - |
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| (noun) a follower who hangs around a host (without benefit to the host) in hope of gain or advantage | Synonyms: leech, sponge, sponger |
| parasitemia | (noun) a condition in which parasites are present in the blood | Synonyms: parasitaemia |
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| parasitism | (noun) the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage) | - |
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