'upper pharyngeals' definitions:

Definition of 'upper pharyngeals'

From: GCIDE

Pharyngeal \Phar`yn*ge"al\, n. (Anat.) A pharyngeal bone or cartilage; especially, one of the {lower pharyngeals}, which belong to the rudimentary fifth branchial arch in many fishes, or one of the upper pharyngeals, or pharyngobranchials, which are the dorsal elements in the complete branchial arches. [1913 Webster]