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branchial arch
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noun
Zoology. 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.
Embryology. 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.
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Also called gill arch, visceral arch.
Origin of branchial arch
First recorded in 1870–75
Words nearby branchial arch
branched chain, branches of government, branchi-, branchia, branchial, branchial arch, branchial cleft, branchial groove, branchial pouch, branchiate, branchiform
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023