| 释义 | crissal
 cris·sumC0751500 (krĭs′əm)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.EncyclopediaSeecrissum
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