| acanthosis | (noun) an abnormal but benign thickening of the prickle-cell layer of the skin (as in psoriasis) | - |
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| bathos | (noun) triteness or triviality of style | - |
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| (noun) a change from a serious subject to a disappointing one | Synonyms: anticlimax |
| (noun) insincere pathos | Synonyms: mawkishness |
| benthos | (noun) organisms (plants and animals) that live at or near the bottom of a sea, lake, river or stream | - |
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| (noun) a region including the bottom of the sea and the littoral zones | Synonyms: benthic division, benthonic zone |
| boothose | (noun) protective stockings worn with or in place of boots | - |
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| corythosaur | (noun) duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet | Synonyms: corythosaurus |
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| corythosaurus | (noun) duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet | Synonyms: corythosaur |
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| epanorthosis | (noun) immediate rephrasing for intensification or justification | - |
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| ethos | (noun) (anthropology) the distinctive spirit of a culture or an era | - |
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| ethosuximide | (noun) an anticonvulsant drug (trade names Emeside and Zarontin) used to treat petit mal epilepsy | Synonyms: Emeside, Zarontin |
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| gnathostome | (noun) a vertebrate animal possessing true jaws | - |
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| lithosphere | (noun) the solid part of the earth consisting of the crust and outer mantle | Synonyms: geosphere |
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| merobenthos | (noun) benthos consisting of organisms in pre-adult stages that later become adult in the plankton. | - |
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| microbenthos | (noun) microscopic benthic organisms that are less than 0.1 mm in size. | - |
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| nothosaur | (noun) extinct marine reptile with longer more slender limbs than plesiosaurs and less completely modified for swimming | - |
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| ornithosis | (noun) an atypical pneumonia caused by a rickettsia microorganism and transmitted to humans from infected birds | Synonyms: parrot fever, psittacosis |
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| orthoscope | (noun) an ophthalmoscope with a layer of water to neutralize the refraction of the cornea | - |
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| orthostatic | (adjective) pertaining to an upright standing posture | - |
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| pathos | (noun) a quality that arouses emotions (especially pity or sorrow) | Synonyms: poignancy |
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| (noun) a style that has the power to evoke feelings | - |
| (noun) a feeling of sympathy and sorrow for the misfortunes of others | Synonyms: commiseration, pity, ruth |
| pothos | (noun) any of various tropical lianas of the genus Scindapsus | - |
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| (noun) evergreen liana widely cultivated for its variegated foliage | Synonyms: Epipremnum aureum, golden pothos, ivy arum, Scindapsus aureus |
| stethoscope | (noun) a medical instrument for listening to the sounds generated inside the body | - |
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| xanthosis | (noun) an abnormal yellow discoloration of the skin | - |
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