[kris-uh m]
noun, plural cris·sa [kris-uh] /ˈkrɪs ə/. Ornithology.
  1. the region surrounding the cloacal opening beneath the tail of a bird.
  2. the feathers of this region collectively.

Origin of crissum

1870–75; < New Latin, equivalent to Latin criss(āre) to move the haunches + -um noun suffix Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for crissum

Historical Examples of crissum

British Dictionary definitions for crissum


noun plural -sa (-sə)
  1. the area or feathers surrounding the cloaca of a bird
Derived Formscrissal, adjective

Word Origin for crissum

C19: from New Latin, from Latin crissāre to move the haunches
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012