crissum definition by Webster's New World
- the area under the tail of a bird, around the cloacal opening
- the feathers covering this
Origin: Modern Latin ; from Classical Latin crissare, for crisare, to move the haunches ; from Indo-European an unverified form (s)kreit- ; from base an unverified form (s)ker-, to turn from source Classical Latin curvus: see curve
crissum definition by American Heritage Dictionary
noun pl. cris·sa
Origin: New Latin, from Latin crīsāre, crissāre, to move the buttocks during intercourse; see sker-2 in Indo-European roots.
- crisˈsal adjective