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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 uropygial
 尾脂的

From: Webster's Revised Unabridged Dictionary (1913)

 U·ro·pyg·i·al a.  Anat. Of or pertaining to the uropygium, or prominence at the base of the tail feathers, in birds.
 Uropygial gland, a peculiar sebaceous gland at the base of the tail feathers in most birds. It secretes an oily fluid which is spread over the feathers by preening.
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