| NOUN | animal | uropygial gland, preen gland | oil-secreting gland situated at the base of the tail in most birds |
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| Meaning | oil-secreting gland situated at the base of the tail in most birds. | |
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| Synonym | preen gland | |
| Part of | bird | warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings |
| Broader | oil gland | A gland that secretes oil |
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