| acrodont | (noun) an animal having teeth consolidated with the summit of the alveolar ridge without sockets | - |
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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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| astrodome | (noun) a transparent dome on top of an airplane where the navigator can make celestial observations | - |
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| chaetodon | (noun) any fish of the genus Chaetodon | - |
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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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| commodore | (noun) a commissioned naval officer who ranks above a captain and below a rear admiral; the lowest grade of admiral | - |
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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 | - |
| cynodont | (noun) small carnivorous reptiles | - |
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| cyprinodont | (noun) any member of the family Cyprinodontidae | - |
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| deodorant | (noun) a toiletry applied to the skin in order to mask unpleasant odors | Synonyms: deodourant |
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| deodourant | (noun) a toiletry applied to the skin in order to mask unpleasant odors | Synonyms: deodorant |
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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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| 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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| diplodocus | (noun) a huge quadrupedal herbivore with long neck and tail; of late Jurassic in western North America | - |
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| dodo | (noun) extinct heavy flightless bird of Mauritius related to pigeons | Synonyms: Raphus cucullatus |
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| (noun) someone whose style is out of fashion | Synonyms: fogey, fogy, fossil |
| 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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| epanodos | (noun) repetition of a group of words in reverse order | - |
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| (noun) recapitulation of the main ideas of a speech (especially in reverse order) | - |
| etodolac | (noun) a nonsteroidal anti-inflammatory drug (trade name Lodine) | Synonyms: Lodine |
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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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| godown | (noun) (in India and Malaysia) a warehouse | - |
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| heterodoxy | (noun) the quality of being unorthodox | Synonyms: unorthodoxy |
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| (noun) any opinions or doctrines at variance with the official or orthodox position | Synonyms: heresy, unorthodoxy |
| hodometer | (noun) a meter that shows mileage traversed | Synonyms: mileometer, milometer, odometer |
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| hodoscope | (noun) (physics) scientific instrument that traces the path of a charged particle | - |
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| hoodoo | (noun) a charm superstitiously believed to embody magical powers | Synonyms: fetich, fetish, juju, voodoo |
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| (noun) something believed to bring bad luck | - |
| (noun) a practitioner of voodoo | - |
| (noun) (geology) a column of weathered and unusually shaped rock | - |
| hoodooism | (noun) a religious cult practiced chiefly in Caribbean countries (especially Haiti); involves witchcraft and animistic deities | Synonyms: vodoun, voodoo, voodooism |
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| ictodosaur | (noun) intermediate in form between the therapsids and most primitive true mammals | - |
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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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| iodochlorhydroxyquin | (noun) drug used to treat certain fungal infection (as athlete's foot) | Synonyms: Clioquinol |
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| iodocompound | (noun) a compound containing the covalent iodine radical | - |
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| iodoform | (noun) a yellowish crystalline solid with a penetrating odor; sometimes used as an antiseptic dressing | Synonyms: triiodomethane |
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| (noun) sweet smelling yellow solid haloform CHI3 | Synonyms: tri-iodomethane |
| iodoprotein | (noun) a protein that contains iodine | Synonyms: iodinated protein |
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| iodopsin | (noun) a violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision | - |
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| iodothyronine | (noun) thyronine with iodine added | - |
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| iodotyrosine | (noun) tyrosine with iodine added | - |
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| koodoo | (noun) either of two spiral-horned antelopes of the African bush | Synonyms: koudou, kudu |
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| labyrinthodont | (noun) an amphibian of the superorder Labyrinthodontia | - |
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| levodopa | (noun) the levorotatory form of dopa (trade names Bendopa and Brocadopa and Larodopa); as a drug it is used to treat Parkinson's disease | Synonyms: Bendopa, Brocadopa, L-dopa, Larodopa |
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| malodor | (noun) a distinctive odor that is offensively unpleasant | Synonyms: fetor, foetor, malodour, mephitis, reek, stench, stink |
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| malodorousness | (noun) the attribute of having a strong offensive smell | Synonyms: fetidness, foulness, rankness, stinkiness |
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| malodour | (noun) a distinctive odor that is offensively unpleasant | Synonyms: fetor, foetor, malodor, mephitis, reek, stench, stink |
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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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| methodology | (noun) the system of methods followed in a particular discipline | - |
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| (noun) the branch of philosophy that analyzes the principles and procedures of inquiry in a particular discipline | Synonyms: methodological analysis |
| microdot | (noun) photograph reduced to the size of a dot (usually for purposes of security) | - |
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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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| narcodollar | (noun) money (especially in the form of US dollars) obtained from narcotrafficking. | Synonyms: narco-dollar |
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| nefazodone | (noun) an antidepressant drug (trade name Serzone) | Synonyms: Serzone |
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| odometer | (noun) a meter that shows mileage traversed | Synonyms: hodometer, mileometer, milometer |
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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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| odor | (noun) any property detected by the olfactory system | Synonyms: aroma, odour, olfactory property, scent, smell |
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| (noun) the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form | Synonyms: odour, olfactory perception, olfactory sensation, smell |
| odour | (noun) any property detected by the olfactory system | Synonyms: aroma, odor, olfactory property, scent, smell |
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| (noun) the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form | Synonyms: odor, olfactory perception, olfactory sensation, smell |
| 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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| orthodoxy | (noun) the quality of being orthodox (especially in religion) | - |
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| (noun) a belief or orientation agreeing with conventional standards | - |
| 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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| podocarp | (noun) any evergreen in the Southern Hemisphere of the genus Podocarpus having a pulpy fruit with one hard seed | - |
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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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| rhodochrosite | (noun) a mineral consisting of manganese carbonate; a source of manganese | - |
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| rhododendron | (noun) any shrub of the genus Rhododendron: evergreen shrubs or small shrubby trees having leathery leaves and showy clusters of campanulate (bell-shaped) flowers | - |
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| rhodolite | (noun) a red or pink variety of garnet used as a gemstone | - |
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| rhodomontade | (noun) vain and empty boasting | Synonyms: bluster, braggadocio, rodomontade |
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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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| rhodopsin | (noun) a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light | Synonyms: retinal purple, visual purple |
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| rodomontade | (noun) vain and empty boasting | Synonyms: bluster, braggadocio, rhodomontade |
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| sodoku | (noun) the form of ratbite fever occurring in the Far East | Synonyms: spirillum fever |
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| sodom | (noun) any location known for vice and corruption | - |
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| sodomist | (noun) someone who engages in anal copulation (especially a male who engages in anal copulation with another male) | Synonyms: bugger, sod, sodomite |
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| sodomite | (noun) someone who engages in anal copulation (especially a male who engages in anal copulation with another male) | Synonyms: bugger, sod, sodomist |
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| sodomy | (noun) intercourse via the anus, committed by a man with a man or woman | Synonyms: anal intercourse, anal sex, buggery |
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| (noun) sexual activity between a person and an animal | Synonyms: bestiality, zooerastia, zooerasty |
| streptodornase | (noun) an enzyme produced by some hemolytic strains of streptococcus that dissolves fibrinous secretions from infections; used medicinally (often in combination with streptokinase) | - |
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| tetraiodothyronine | (noun) hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells | Synonyms: T, thyroxin, thyroxine |
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| tetrodotoxin | (noun) a powerful neurotoxin found in the ovaries of pufferfish | - |
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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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| theodolite | (noun) a surveying instrument for measuring horizontal and vertical angles, consisting of a small telescope mounted on a tripod | Synonyms: transit |
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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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| triiodomethane | (noun) a yellowish crystalline solid with a penetrating odor; sometimes used as an antiseptic dressing | Synonyms: iodoform |
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