straight-jawed; having the profile of the face vertical or nearly so; having a gnathic index below 98.
Also or·thog·nath·ic [awr-thuh g-nath-ik, -thog-] /ˌɔr θəgˈnæθ ɪk, -θɒg-/.
Origin of orthognathous
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anatomy having normally aligned jaws
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Relating to orthognathia.
Having a jaw that does not project forward.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.