| 释义 |
uro·pyg·i·um
\ˌyu̇rəˈpijēəm\ noun
(-s)
Etymology: New Latin, from Greek ouropygion, from ouro- ur- (II) + pygē rump, buttocks — more at fog
: the fleshy and bony prominence at the posterior extremity of a bird's body that supports the tail feathers and contains the free caudal vertebrae and the pygostyle |