branchial arch(redirected from branchial groove)
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branchial arch[′braŋ·kē·əl ′ärch]
One of the series of paired arches on the sides of the pharynx which support the gills in fishes and amphibians.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.