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cleft between two pharyngeal or branchial (visceral) arches in the embryo.
Farlex Partner Medical Dictionary © Farlex 2012
vis·cer·al cleft(vis'ĕr-ăl kleft)
Any cleft or groove between two pharyngeal arches in the embryo.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
One of the fissures separating the visceral arches.
See also: cleft
Medical Dictionary, © 2009 Farlex and Partners