u·ro·py·gi·um (y r  -p  j -m, -p j-)n. The posterior part of a bird's body, from which the tail feathers grow. [New Latin  ropygium, from Greek ouropugion : ouro-, tail; see uro-2 + pug, rump.]u ro·pygi·al (-l) adj. |
uropygium [ˌjʊərəˈpɪdʒɪəm]
n
(Life Sciences & Allied Applications / Zoology) the hindmost part of a bird's body, from which the tail feathers grow
[via New Latin from Greek ouropugion, from uro-2 + pugē rump]
uropygial adj
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  uropygium - posterior part of a bird's body from which the tail feathers growbird - warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings tail - the posterior part of the body of a vertebrate especially when elongated and extending beyond the trunk or main part of the body |
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