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n. pl. cris·sa (krĭs′ə)
The feathers or area under the tail of a bird surrounding the cloacal opening.

[New Latin, from Latin crīsāre, crissāre, to move the buttocks during intercourse; see sker- in Indo-European roots.]

cris′sal (-əl) adj.


n, pl -sa (-sə)
(Zoology) the area or feathers surrounding the cloaca of a bird
[C19: from New Latin, from Latin crissāre to move the haunches]
ˈcrissal adj


(ˈkrɪs əm)

n., pl. cris•sa (ˈkrɪs ə)
1. the region surrounding the cloacal opening beneath the tail of a bird.
2. the feathers of this region collectively.
[1870–75; < New Latin, derivative of Latin crissāre to move the haunches]
cris′sal, adj.
References in periodicals archive ?
Amidostomum acutum, Streptocara crassicauda, Sciadiocara rugosa, Porrocaecum crissum, strongyloides spp.
Relatively pale individuals have an unmarked lower belly; individuals that are paler still are unmarked on the lower belly, crissum, and distal flanks.