最終更新日：2024/07/29

A secretory organ, at the base of a bird's tail, that secretes the oil used in preening.

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uropygial gland

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元となった辞書の項目

uropygial gland

noun

A secretory organ, at the base of a bird's tail, that secretes the oil used in preening.

The uropygial gland is responsible for producing an oily substance that birds use to preen their feathers.

意味（1）

A secretory organ, at the base of a bird's tail, that secretes the oil used in preening.