crissum

crissum

[kris-uhm]
noun, plural crissa [kris-uh] . Ornithology.
1.
the region surrounding the cloacal opening beneath the tail of a bird.
2.
the feathers of this region collectively.

Origin:
1870–75; < Neo-Latin, equivalent to Latin criss(āre) to move the haunches + -um noun suffix

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World English Dictionary
crissum (ˈkrɪsəm)
 
n , pl -sa
the area or feathers surrounding the cloaca of a bird
 
[C19: from New Latin, from Latin crissāre to move the haunches]
 
'crissal
 
adj

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