crissum

(redirected from crissal)
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Related to crissal: expostulation, scrutinised

crissum

[′kris·əm]
(vertebrate zoology)
The region surrounding the cloacal opening in birds.
The vent feathers covering the circumcloacal region.
References in periodicals archive ?
rarities as the zone-tailed hawk, lucifer hummingbird, crissal thrasher, and varied bunting.