Bible Dictionaries
Pygostyle

Webster's Dictionary

(n.) The plate of bone which forms the posterior end of the vertebral column in most birds; the plowshare bone; the vomer. It is formed by the union of a number of the last caudal vertebrae, and supports the uropigium.

Bibliography Information
Webster, Noah. Entry for 'Pygostyle'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/pygostyle.html. 1828.