Chinese 尾脂腺 Cited by user T45614631 on 12 Jul 2023 尾脂腺（英語：Uropygial gland、Oil gland、Preen gland）是一種位於鳥類尾端背側的全泌腺. 會分泌出一些主要由脂質類物質為主的分泌物，供鳥類在有需要時以其鳥喙或腳沾取塗抹於羽毛上.
English Uropygial gland Cited by user Materialscientist on 03 Apr 2013 The uropygial gland, informally known as the preen gland or the oil gland, is a bilobate sebaceous gland possessed by the majority of birds.