uropygial gland
noun Ornithology.
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.
Origin of uropygial gland
First recorded in 1865–70
Words nearby uropygial gland
uropod,
uropoiesis,
uroporphyrin,
uroporphyrinogen,
uropygial,
uropygial gland,
uropygium,
uroradiology,
uroscheocele,
uroschesis,
uroscopy
British Dictionary definitions for uropygial gland
uropygial gland
noun
a gland, situated at the base of the tail in most birds, that secretes oil used in preening