Definition of pygostyle in English:

Share this entry


Pronunciation: /ˈpīɡəˌstīl/


(In a bird) a triangular plate formed of the fused caudal vertebrae, typically supporting the tail feathers.
Example sentences
  • The tail is shortened and fused to form a pygostyle which bears tail feathers (retrices).
  • All birds, both fossil and modern, have reduced the tail to a mass of fused vertebrae termed the pygostyle.


Late 19th century: from Greek pugē 'rump' + stulos 'column'.

For editors and proofreaders

Syllabification: py·go·style

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.