u·ro·py·gi·al gland 
(yr′ə-pījē-əl, -pĭjē-)
(yr′ə-pījē-əl, -pĭjē-)n.
A large gland at the base of a bird's tail that secretes an oil used in preening. Also called oil gland.
| 单词 | uropygial gland |
| 释义 | u·ro·py·gi·al gland (yr′ə-pījē-əl, -pĭjē-)n. A large gland at the base of a bird's tail that secretes an oil used in preening. Also called oil gland. |
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