branchial-cleft

branchial cleft

noun
Zoology. one of a series of slitlike openings in the walls of the pharynx between the branchial arches of fishes and aquatic amphibians through which water passes from the pharynx to the exterior.
Also called visceral cleft.
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American Heritage
Medical Dictionary

branchial cleft n.

  1. One of a bilateral series of slitlike openings into the pharynx through which water is drawn by aquatic animals.

  2. Any of the homologous branchialectodermal grooves of the mammalian embryo.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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