apertognathia

[ ə-pûr′tŏg-nāthē-ə, -tō-năthē-ə ]

n.

A type of malocclusion characterized by the premature occlusion of posterior teeth and the absence of anterior occlusion.open bite
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.