pygostyle

[ pahy-guh-stahyl ]

nounOrnithology.
  1. the bone at the posterior end of the spinal column in birds, formed by the fusion of several caudal vertebrae.

Origin of pygostyle

1
1870–75; <Greek pȳgo- (combining form representing pȳgḗ rump) + stŷlos pillar

Other words from pygostyle

  • py·go·styled, adjective
  • py·go·sty·lous, adjective

Words Nearby pygostyle

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use pygostyle in a sentence

  • The posterior caudal vertebrae are not united together to form a pygostyle.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • They all agree in having a short tail whose component vertebrae are commonly ankylosed together forming a pygostyle.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • The tail is short and the posterior caudal vertebrae are generally ankylosed together forming a pygostyle.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • The tail is comparatively long, and formed of twelve vertebrae with only slight indications of a pygostyle.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • The last six or seven caudal vertebrae coalesce into the pygostyle, an upright blade which carries the rectrices.