gill arch

gill arch  (gl)

n. In both senses also called branchial arch.

1. One of several bony or cartilaginous arches located on either side of the pharynx and supporting the gills in fish and amphibians.

2. Embryology One of several corresponding arches in the embryo of a higher vertebrate that develop into structures of the ear and neck.

Thesaurus

Noun

1.

gill arch - one of the bony or cartilaginous arches on each side of the pharynx that support the gills of fishes and aquatic amphibians branchial arch, gill bar anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure"