uropygial gland
noun Date: 1870 a large gland that occurs in most birds, opens dorsally at the base of the tail feathers, and usually secretes an oily fluid which the bird uses in preening its feathers — called also oil gland

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Uropygial gland — Uropygial U ro*pyg i*al, a. [See {Uropygium}.] (Anat.) Of or pertaining to the uropygium, or prominence at the base of the tail feathers, in birds. [1913 Webster] {Uropygial gland}, a peculiar sebaceous gland at the base of the tail feathers in… …   The Collaborative International Dictionary of English

  • uropygial gland — n. a large gland located at the base of the tail in most birds, that secretes an oil used in preening …   English World dictionary

  • Uropygial gland — The uropygial gland, or, more informally, the preen gland is a gland found in the large majority of birds that secretes an oil (preen oil) that birds use for preening. The chief compounds of preen oil are diester waxes called uropygiols.The gland …   Wikipedia

  • uropygial gland — Ornith. a gland opening on the back at the base of the tail in most birds that secretes an oily fluid used by the bird in preening its feathers. Also called oil gland, preen gland. [1865 70] * * * …   Universalium

  • uropygial gland — noun oil secreting gland situated at the base of the tail in most birds • Syn: ↑preen gland • Hypernyms: ↑oil gland • Part Holonyms: ↑bird …   Useful english dictionary

  • uropygial gland — u•ro•pyg′i•al gland [[t]ˌyʊər əˈpɪdʒ i əl[/t]] n. orn a gland at the base of the tail in most birds that secretes an oily fluid used in preening • Etymology: 1865 …   From formal English to slang

  • uropygial gland — /jurəˈpɪdʒiəl glænd/ (say yoohruh pijeeuhl gland) noun a gland opening on the uropygium at the root of the tail in most birds, and secreting an oily fluid used by the bird in preening its feathers …   Australian English dictionary

  • uropygial gland — noun A secretory organ, at the base of a birds tail, that secretes the oil used in preening …   Wiktionary

  • uropygial gland — preen g …   Medical dictionary

  • Uropygial — U ro*pyg i*al, a. [See {Uropygium}.] (Anat.) Of or pertaining to the uropygium, or prominence at the base of the tail feathers, in birds. [1913 Webster] {Uropygial gland}, a peculiar sebaceous gland at the base of the tail feathers in most birds …   The Collaborative International Dictionary of English

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