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Medical Definition of Branchial arches
1. Typically, 6 arch's in vertebrates; in the lower vertebrates, they bear gills; in the higher vertebrates, they appear transiently and give rise to specialised structures in the head and neck. Synonym: pharyngeal arches, visceral arches. (05 Mar 2000)
Lexicographical Neighbors of Branchial Arches
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