[ prog-nuh-thuh s, prog-ney- ]
/ ˈprɒg nə θəs, prɒgˈneɪ- /

adjective Craniometry.

having protrusive jaws; having a gnathic index over 103.
Also prog·nath·ic [prog-nath-ik] /prɒgˈnæθ ɪk/.

Origin of prognathous

First recorded in 1830–40; pro-2 + -gnathous

OTHER WORDS FROM prognathous

prog·na·thism [prog-nuh-thiz-uh m] /ˈprɒg nəˌθɪz əm/, prog·na·thy, nounhy·per·prog·na·thous, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for prognathy


prognathic (prɒɡˈnæθɪk)

/ (prɒɡˈneɪθəs) /


having a projecting lower jaw

Derived forms of prognathous

prognathism (ˈprɒɡnəˌθɪzəm), noun

Word Origin for prognathous

C19: from pro- ² + Greek gnathos jaw
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

Medical definitions for prognathy

[ prŏgnə-thəs, prŏg-nā- ]


Having jaws that project forward to a marked degree.

Other words from prognathous

progna•thism (-nə-thĭz′əm) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.