| abrachia | (noun) the condition of having no arms | - |
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| anorchia | (noun) absence of one of both testes | Synonyms: anorchidism, anorchism |
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| archiannelid | (noun) small primitive marine worm lacking external segmentation and resembling polychaete larvae | - |
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| batrachian | (noun) any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species | Synonyms: anuran, frog, salientian, toad, toad frog |
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| batrachomyomachia | (noun) a silly altercation | - |
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| brachiation | (noun) swinging by the arms from branch to branch | - |
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| branchia | (noun) respiratory organ of aquatic animals that breathe oxygen dissolved in water | Synonyms: gill |
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| chiaroscuro | (noun) a monochrome picture made by using several different shades of the same color | - |
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| chiasm | (noun) an intersection or crossing of two tracts in the form of the letter X | Synonyms: chiasma, decussation |
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| chiasma | (noun) an intersection or crossing of two tracts in the form of the letter X | Synonyms: chiasm, decussation |
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| chiasmus | (noun) inversion in the second of two parallel phrases | - |
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| dibranchiate | (noun) cephalopods having two gills | Synonyms: dibranch, dibranchiate mollusk |
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| escherichia | (noun) a genus of enteric bacteria | - |
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| lochia | (noun) substance discharged from the vagina (cellular debris and mucus and blood) that gradually decreases in amount during the weeks following childbirth | - |
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| microbrachia | (noun) abnormally small arms | - |
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| naumachia | (noun) a naval spectacle; a mock sea battle put on by the ancient Romans | Synonyms: naumachy |
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| neuropsychiatry | (noun) the branch of medicine dealing with mental disorders attributable to diseases of the nervous system | - |
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| opisthorchiasis | (noun) infestation with flukes obtained from eating raw fish; common in eastern Asia | - |
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| ornithischian | (noun) herbivorous dinosaur with a pelvis like that of a bird | Synonyms: ornithischian dinosaur |
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| parochialism | (noun) a limitation of views or interests like that defined by a local parish | - |
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| paronychia | (noun) infection in the tissues adjacent to a nail on a finger or toe | - |
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| petechia | (noun) a minute red or purple spot on the surface of the skin as the result of tiny hemorrhages of blood vessels in the skin (as in typhoid fever) | - |
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| psychiatrist | (noun) a physician who specializes in psychiatry | Synonyms: head-shrinker, shrink |
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| psychiatry | (noun) the branch of medicine dealing with the diagnosis and treatment of mental disorders | Synonyms: psychological medicine, psychopathology |
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| saurischian | (noun) herbivorous or carnivorous dinosaur having a three-pronged pelvis like that of a crocodile | Synonyms: saurischian dinosaur |
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| selachian | (noun) any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks, rays, skates | Synonyms: elasmobranch |
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| synechia | (noun) adhesions between the iris and the lens or cornea resulting from trauma or eye surgery or as a complication of glaucoma or cataract; can lead to blindness | - |
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| welwitschia | (noun) curious plant of arid regions of southwestern Africa having a yard-high and yard-wide trunk like a turnip with a deep taproot and two large persistent woody straplike leaves growing from the base; living relic of a flora long disappeared; some may be 700-5000 years old | Synonyms: Welwitschia mirabilis |
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