| 单词 |
crissum |
| 释义 |
crissum
cris·sum C0751500 (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.crissum (ˈkrɪsəm) 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 adjcris•sum (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. crissum
crissum[′kris·əm] (vertebrate zoology) The region surrounding the cloacal opening in birds. The vent feathers covering the circumcloacal region. |
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