uropygium
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.uro·py·gi·um
noun \ˌyu̇r-ə-ˈpī-jē-əm\Definition of UROPYGIUM
: the fleshy and bony prominence at the posterior extremity of a bird's body that supports the tail feathers
Origin of UROPYGIUM
New Latin, from Greek ouropygion, from ouro- 2ur- + pygē rump
First Known Use: 1771
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