What is another word for uropygium?
Pronunciation: [jˈʊ͡əɹəpˌɪd͡ʒəm] (IPA) 
Uropygium is a scientific term that refers to the prominent, fleshy mound situated at the base of the tail feathers of certain birds. This part of the bird's anatomy is also known as the pygostyle or the preen gland. There are several synonyms for the word uropygium, including the oil gland, preen gland, preening gland, and the glandula uropygialis. The primary function of the uropygium is to produce a special oil that the bird uses to treat and waterproof its feathers, ensuring that they remain functional and in good condition. While not a commonly used word in everyday conversation, understanding the various synonyms of the word uropygium can be useful for individuals interested in birds or ornithology.
