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Definition of Gill arch
1. Noun. One of the bony or cartilaginous arches on each side of the pharynx that support the gills of fishes and aquatic amphibians.
Exact synonyms: Branchial Arch, Gill Bar
Generic synonyms: Anatomical Structure, Bodily Structure, Body Structure, Complex Body Part, Structure
Generic synonyms: Anatomical Structure, Bodily Structure, Body Structure, Complex Body Part, Structure