uropygial gland

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Related to Preen oil: preen gland

u·ro·py·gi·al gland

 (yo͝or′ə-pī′jē-əl, -pĭj′ē-)
n.
A large gland at the base of a bird's tail that secretes an oil used in preening. Also called oil gland.

uropygial gland

n
(Zoology) a gland, situated at the base of the tail in most birds, that secretes oil used in preening

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.
[1865]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.uropygial gland - oil-secreting gland situated at the base of the tail in most birdsuropygial gland - oil-secreting gland situated at the base of the tail in most birds
bird - warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
oil gland - a gland that secretes oil
References in periodicals archive ?
The researchers used cotton swabs to collect preen oil from the penguins.
Male birds apparently release their cologne - or preen oil - secreted from a gland at the base of their tail.
Preen oil is secreted and spread to straighten, protect, and waterproof birds' feathers.