Definition of "gnathic" []

• Of or relating to the jaw. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The degree of projection of the jaws is determined by the gnathic or alveolar index, which represents the proportion between the basialveolar and basinasal lengths, thus: basialveolar length X 100/basinasal length56"