| 单词 | branchial arch |
| 释义 | branchial arch 1. Zool. one of a series of bony or cartilaginous arches on each side of the pharynx that support the gills of fishes and aquatic amphibians; gill bar. 2. Embryol. one of a series of archlike mesodermal thickenings of the body wall in the pharyngeal region of the embryo of amphibians, reptiles, birds, and mammals. Also called gill arch, visceral arch. [1870-75] |
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