Definitions for uropygial glandˌyʊər əˈpɪdʒ i əl
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Random House Webster's College Dictionary
u•ro•pyg′i•al gland`ˌyʊər əˈpɪdʒ i əl(n.)
a gland at the base of the tail in most birds that secretes an oily fluid used in preening.
Category: Ornithology
Origin of uropygial gland:
1865
Princeton's WordNet
uropygial gland, preen gland(noun)
oil-secreting gland situated at the base of the tail in most birds
Wiktionary
uropygial gland(Noun)
A secretory organ, at the base of a bird's tail, that secretes the oil used in preening.
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