| 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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| prosthodontic | (adjective) of or relating to 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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| pseudonymous | (adjective) bearing or identified by an assumed (often pen) name | - |
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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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| sardonic | (adjective) disdainfully or ironically humorous; scornful and mocking | Synonyms: snarky |
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| sardonically | (adverb) in a sarcastic manner | Synonyms: sarcastically |
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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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| underdone | (adjective) insufficiently cooked | Synonyms: half-baked |
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| undone | (adjective) thrown into a state of disorganization or incoherence | Synonyms: unstuck |
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| (adjective) not fastened or tied or secured | - |
| (adjective) not done | - |
| (adjective) doomed to extinction | Synonyms: done for, ruined, sunk, washed-up |
| unpardonable | (adjective) not admitting of pardon | - |
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| unpardonably | (adverb) in an unpardonable manner or to an unpardonable degree | Synonyms: inexcusably, unforgivably |
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