请输入您要查询的英文单词:

 

单词 uropygial gland
释义

uropygial gland


u·ro·py·gi·al gland

U0151800 (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]
Thesaurus
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 birdspreen glandbird - warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wingsoil gland - a gland that secretes oil

Uropygial Gland


uropygial gland

[¦yu̇r·ə¦pij·ē·əl ‚gland] (vertebrate zoology) A relatively large, compact, bilobed, secretory organ located at the base of the tail (uropygium) of most birds having a keeled sternum. Also known as oil gland; preen gland.

Uropygial Gland

 

(also preen gland, oil gland), a large, usually bilobed cutaneous gland in the majority of birds; its structure resembles that of the sebaceous glands. The uropygial gland is absent in a number of ratites, in bustards, and in some parrots and pigeons; it is highly developed in aquatic birds, especially the Procellariiformes and Pelecaniformes, and in the osprey. Located on the dorsal side at the base of the tail, it has from one to five (more often two) ducts, depending on the species. The gland’s secretion, which the bird applies to its plumage with its bill, contains lipoids mixed with proteins and inorganic salts; by maintaining the ordered structure of the plumage, the secretion prevents the feathers from getting wet. In the Procellariiformes, the musk duck, and the nestlings and incubating females of the hoopoe, the secretion of the gland has a sharp unpleasant odor, which apparently serves as protection against predators. In a number of birds, such as chickens and ducks, the uropygial gland secretion contains provitamin D—ergosterol— which the bird ingests as it preens its feathers.

uropygial gland


uropygial 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.

oil gland

Medspeak
Sebaceous glands; glandulae sebaceae [NA].
 
Zoology
The secretory unit in certain birds responsible for producing and deploying lipid moieties required for “waterproofing” water fowl.

uropygial gland


  • noun

Synonyms for uropygial gland

noun oil-secreting gland situated at the base of the tail in most birds

Synonyms

  • preen gland

Related Words

  • bird
  • oil gland
随便看

 

英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/9 19:48:37