Cris"sum (kr?s"s?m),, n.; pl. Crissa (-s). [NL.; cf. L. crisso to move the haunches.] Zool.
That part of a bird, or the feathers, surrounding the cloacal opening; the under tail coverts.
© Webster 1913.
Log in or register to write something here or to contact authors.
Need help? firstname.lastname@example.org