preen oil

Noun

countable uncountable

Oil produced by the uropygial gland in birds, used in preening.

Japanese Meaning

鳥の尾翼腺から分泌され、羽繕いに使用される油

The duck carefully spread preen oil over its feathers to maintain waterproofing.

そのアヒルは防水性を保つために、尾腺油を羽全体に丁寧に塗った。

Sense（1）

Oil produced by the uropygial gland in birds, used in preening.

preen oils

（ plural ）