| abandon | (noun) the trait of lacking restraint or control; reckless freedom from inhibition or worry | Synonyms: unconstraint, wantonness |
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| (noun) a feeling of extreme emotional intensity | Synonyms: wildness |
| abandonment | (noun) withdrawing support or help despite allegiance or responsibility | Synonyms: defection, desertion |
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| (noun) the voluntary surrender of property (or a right to property) without attempting to reclaim it or give it away | - |
| (noun) the act of giving something up | Synonyms: desertion, forsaking |
| acrodont | (noun) an animal having teeth consolidated with the summit of the alveolar ridge without sockets | - |
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| adonis | (noun) any handsome young man | - |
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| aerodontalgia | (noun) pain in the teeth that results from a change in air pressure (as in flying or mountain climbing) | - |
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| anhedonia | (noun) an inability to experience pleasure | - |
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| bandoneon | (noun) a type of concertina popular in South America | - |
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| belladonna | (noun) an alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally | - |
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| (noun) perennial Eurasian herb with reddish bell-shaped flowers and shining black berries; extensively grown in United States; roots and leaves yield atropine | Synonyms: Atropa belladonna, belladonna plant, deadly nightshade |
| bombardon | (noun) a large shawm; the bass member of the shawm family | Synonyms: bombard |
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| (noun) a tuba that coils over the shoulder of the musician | Synonyms: helicon |
| bourdon | (noun) a pipe of the bagpipe that is tuned to produce a single continuous tone | Synonyms: drone, drone pipe |
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| boustrophedon | (noun) an ancient writing system: having alternate lines written in opposite directions; literally `as the ox ploughs' | - |
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| calcedony | (noun) a milky or greyish translucent to transparent quartz | Synonyms: chalcedony |
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| chaetodon | (noun) any fish of the genus Chaetodon | - |
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| chalcedony | (noun) a milky or greyish translucent to transparent quartz | Synonyms: calcedony |
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| chlorthalidone | (noun) a diuretic (trade names Hygroton and Thalidone) used to control hypertension and conditions that cause edema; effective in lowering blood pressure to prevent heart attacks | Synonyms: Hygroton, Thalidone |
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| codon | (noun) a specific sequence of three adjacent nucleotides on a strand of DNA or RNA that specifies the genetic code information for synthesizing a particular amino acid | - |
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| condonation | (noun) a pardon by treating the offender as if the offense had not occurred | - |
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| conodont | (noun) small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomes | - |
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| (noun) the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta | - |
| cordon | (noun) adornment consisting of an ornamental ribbon or cord | - |
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| (noun) cord or ribbon worn as an insignia of honor or rank | - |
| (noun) a series of sentinels or of military posts enclosing or guarding some place or thing | - |
| cotyledon | (noun) embryonic leaf in seed-bearing plants | Synonyms: seed leaf |
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| cynodont | (noun) small carnivorous reptiles | - |
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| cyprinodont | (noun) any member of the family Cyprinodontidae | - |
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| dicamptodon | (noun) salamanders found near cold streams throughout the year | Synonyms: dicamptodontid |
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| dicamptodontid | (noun) salamanders found near cold streams throughout the year | Synonyms: dicamptodon |
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| dicotyledon | (noun) flowering plant with two cotyledons; the stem grows by deposit on its outside | Synonyms: dicot, exogen, magnoliopsid |
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| dicynodont | (noun) a kind of therapsid | - |
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| dimetrodon | (noun) carnivorous dinosaur of the Permian in North America having a crest or dorsal sail | - |
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| don | (noun) teacher at a university or college (especially at Cambridge or Oxford) | Synonyms: preceptor |
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| (noun) the head of an organized crime family | Synonyms: father |
| donation | (noun) act of giving in common with others for a common purpose especially to a charity | Synonyms: contribution |
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| (noun) a voluntary gift (as of money or service or ideas) made to some worthwhile cause | Synonyms: contribution |
| donee | (noun) the recipient of funds or other benefits | Synonyms: beneficiary |
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| dong | (noun) the basic unit of money in Vietnam | - |
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| dongle | (noun) (computer science) an electronic device that must be attached to a computer in order for it to use protected software | - |
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| donjon | (noun) the main tower within the walls of a medieval castle or fortress | Synonyms: dungeon, keep |
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| donkey | (noun) domestic beast of burden descended from the African wild ass; patient but stubborn | Synonyms: domestic ass, Equus asinus |
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| (noun) the symbol of the Democratic Party; introduced in cartoons by Thomas Nast in 1874 | - |
| donkeywork | (noun) hard monotonous routine work | Synonyms: drudgery, grind, plodding |
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| donna | (noun) an Italian woman of rank | - |
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| donor | (noun) person who makes a gift of property | Synonyms: bestower, conferrer, giver, presenter |
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| (noun) (medicine) someone who gives blood or tissue or an organ to be used in another person (the host) | - |
| donut | (noun) a small ring-shaped friedcake | Synonyms: doughnut, sinker |
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| endodontia | (noun) the branch of dentistry dealing with diseases of the dental pulp | Synonyms: endodontics |
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| endodontics | (noun) the branch of dentistry dealing with diseases of the dental pulp | Synonyms: endodontia |
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| endodontist | (noun) a dentist specializing in diseases of the dental pulp and nerve | - |
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| endoneurium | (noun) delicate connective tissue around individual nerve fibers in nerve | - |
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| endonuclease | (noun) a nuclease that cleaves nucleic acids at interior bonds and so produces fragments of various sizes | - |
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| exodontia | (noun) the branch of dentistry dealing with extraction of teeth | Synonyms: exodontics |
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| exodontics | (noun) the branch of dentistry dealing with extraction of teeth | Synonyms: exodontia |
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| exodontist | (noun) a dentist specializing in the extraction of teeth | - |
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| gladdon | (noun) iris with purple flowers and foul-smelling leaves; southern and western Europe and North Africa | Synonyms: gladdon iris, Iris foetidissima, roast beef plant, stinking gladwyn, stinking iris |
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| guerdon | (noun) a reward or payment | - |
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| gueridon | (noun) a small round table | - |
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| hedonism | (noun) an ethical system that evaluates the pursuit of pleasure as the highest good | - |
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| (noun) the pursuit of pleasure as a matter of ethical principle | - |
| hedonist | (noun) someone motivated by desires for sensual pleasures | Synonyms: pagan, pleasure seeker |
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| iguanodon | (noun) massive herbivorous bipedal dinosaur with a long heavy tail; common in Europe and northern Africa; early Cretaceous period | - |
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| iridoncus | (noun) swelling of the iris of the eye | - |
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| labyrinthodont | (noun) an amphibian of the superorder Labyrinthodontia | - |
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| mastodon | (noun) extinct elephant-like mammal that flourished worldwide from Miocene through Pleistocene times; differ from mammoths in the form of the molar teeth | Synonyms: mastodont |
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| mastodont | (noun) extinct elephant-like mammal that flourished worldwide from Miocene through Pleistocene times; differ from mammoths in the form of the molar teeth | Synonyms: mastodon |
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| methadon | (noun) synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction | Synonyms: dolophine hydrochloride, fixer, methadone, methadone hydrochloride, synthetic heroin |
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| methadone | (noun) synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction | Synonyms: dolophine hydrochloride, fixer, methadon, methadone hydrochloride, synthetic heroin |
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| molindone | (noun) antipsychotic drug (trade name Moban) used in the treatment of schizophrenia | Synonyms: Moban |
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| monocotyledon | (noun) a monocotyledonous flowering plant; the stem grows by deposits on its inside | Synonyms: endogen, liliopsid, monocot |
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| mylodon | (noun) large (bear-sized) extinct edentate mammal of the Pleistocene in South America | - |
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| mylodontid | (noun) a variety of extinct edentate | - |
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| myrmidon | (noun) a follower who carries out orders without question | - |
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| nefazodone | (noun) an antidepressant drug (trade name Serzone) | Synonyms: Serzone |
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| odonate | (noun) large primitive predatory aquatic insect having two pairs of membranous wings | - |
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| odontalgia | (noun) an ache localized in or around a tooth | Synonyms: toothache |
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| odontiasis | (noun) the eruption through the gums of baby teeth | Synonyms: dentition, teething |
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| odontoglossum | (noun) any of numerous and diverse orchids of the genus Odontoglossum having racemes of few to many showy usually large flowers in many colors | - |
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| odontology | (noun) the branch of medicine dealing with the anatomy and development and diseases of the teeth | Synonyms: dental medicine, dentistry |
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| oligodontia | (noun) congenital condition in which some of the teeth are missing | - |
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| orthodontia | (noun) the branch of dentistry dealing with the prevention or correction of irregularities of the teeth | Synonyms: dental orthopaedics, dental orthopedics, orthodontics, orthodonture |
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| orthodontics | (noun) the branch of dentistry dealing with the prevention or correction of irregularities of the teeth | Synonyms: dental orthopaedics, dental orthopedics, orthodontia, orthodonture |
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| orthodontist | (noun) a dentist specializing in the prevention or correction of irregularities of the teeth | - |
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| orthodonture | (noun) the branch of dentistry dealing with the prevention or correction of irregularities of the teeth | Synonyms: dental orthopaedics, dental orthopedics, orthodontia, orthodontics |
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| parallelepipedon | (noun) a prism whose bases are parallelograms | Synonyms: parallelepiped, parallelopiped, parallelopipedon |
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| parallelopipedon | (noun) a prism whose bases are parallelograms | Synonyms: parallelepiped, parallelepipedon, parallelopiped |
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| pardon | (noun) the act of excusing a mistake or offense | Synonyms: forgiveness |
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| (noun) the formal act of liberating someone | Synonyms: amnesty, free pardon |
| (noun) a warrant granting release from punishment for an offense | Synonyms: amnesty |
| pardoner | (noun) a medieval cleric who raised money for the church by selling papal indulgences | - |
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| (noun) a person who pardons or forgives or excuses a fault or offense | Synonyms: excuser, forgiver |
| pedodontist | (noun) a dentist who specializes in the care of children's teeth | - |
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| periodontia | (noun) the branch of dentistry dealing with diseases of the gums and other structures around the teeth | Synonyms: periodontics |
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| periodontics | (noun) the branch of dentistry dealing with diseases of the gums and other structures around the teeth | Synonyms: periodontia |
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| periodontist | (noun) a dentist specializing in diseases of the gums and other structure surrounding the teeth | - |
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| periodontitis | (noun) a disease that attacks the gum and bone and around the teeth | Synonyms: periodontal disease |
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| plethodont | (noun) mostly terrestrial salamanders that breathe through their thin moist skin; lay eggs in moist places on land; rarely enter water | Synonyms: lungless salamander |
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| pleurodont | (noun) an animal having teeth fused with the inner surface of the alveolar ridge without sockets | - |
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| primidone | (noun) an anticonvulsant (trade name Mysoline) used to treat grand mal seizures and essential tremor | Synonyms: Mysoline |
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| prosthodontia | (noun) the branch of dentistry dealing with the replacement of teeth and related mouth or jaw structures by artificial devices | Synonyms: prosthodontics |
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| prosthodontics | (noun) the branch of dentistry dealing with the replacement of teeth and related mouth or jaw structures by artificial devices | Synonyms: prosthodontia |
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| prosthodontist | (noun) a dentist who is expert in prosthodontics | - |
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| pseudonym | (noun) a fictitious name used when the person performs a particular social role | Synonyms: anonym, nom de guerre |
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| quandong | (noun) red Australian fruit; used for dessert or in jam | Synonyms: native peach, quandang, quantong |
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| (noun) Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit | Synonyms: blue fig, Brisbane quandong, Elaeocarpus grandis, quandong tree, silver quandong tree |
| (noun) the fruit of the Brisbane quandong tree | Synonyms: blue fig |
| (noun) Australian tree with edible flesh and edible nutlike seed | Synonyms: Eucarya acuminata, Fusanus acuminatus, quandang, quandong tree |
| radon | (noun) a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health | Synonyms: atomic number 86, Rn |
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| rhodonite | (noun) a pink or red mineral consisting of crystalline manganese silicate; used as an ornamental stone | - |
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| sardonyx | (noun) an onyx characterized by parallel layers of sard and a different colored mineral | - |
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| tendon | (noun) a cord or band of inelastic tissue connecting a muscle with its bony attachment | Synonyms: sinew |
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| tendonitis | (noun) inflammation of a tendon | Synonyms: tendinitis, tenonitis |
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| thecodont | (noun) presumably in the common ancestral line to dinosaurs and crocodiles and birds | Synonyms: thecodont reptile |
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| trachodon | (noun) large duck-billed dinosaur of the Cretaceous period | Synonyms: trachodont |
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| trachodont | (noun) large duck-billed dinosaur of the Cretaceous period | Synonyms: trachodon |
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| trazodone | (noun) oral antidepressant (trade name Desyrel) that is a nontricyclic drug used as a sedative | Synonyms: Desyrel, trazodone hydrochloride |
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