• synonyms


[prog-nuh-thuh s, prog-ney-]
See more synonyms for prognathous on Thesaurus.com
adjective Craniometry.
  1. having protrusive jaws; having a gnathic index over 103.
Show More
Also prog·nath·ic [prog-nath-ik] /prɒgˈnæθ ɪk/.

Origin of prognathous

First recorded in 1830–40; pro-2 + -gnathous
Related formsprog·na·thism [prog-nuh-thiz-uh m] /ˈprɒg nəˌθɪz əm/, prog·na·thy, nounhy·per·prog·na·thous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for prognathous

Historical Examples

  • That prognathous jaw was tilted, aimed at Morgan, and Morgan knew it.

    Cue for Quiet

    Thomas L. Sherred

  • "Prognathous," thought M. Ginory, as he noticed this characteristic.

  • The chin was not in the least prognathous, but very well formed.

  • The bridegroom, who is a fine-looking man of the prognathous type, was loudly cheered by the crowd on leaving the church.

  • There we see the same crisped hair, prognathous skull, and thick lips.

British Dictionary definitions for prognathous


prognathic (prɒɡˈnæθɪk)

  1. having a projecting lower jaw
Show More
Derived Formsprognathism (ˈprɒɡnəˌθɪzəm), noun

Word Origin

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

Word Origin and History for prognathous


1836, from pro- + Greek gnathos "jaw" (see gnathic) + -ous. Related: Prognathic.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

prognathous in Medicine


(prŏgnə-thəs, prŏg-nā-)
  1. Having jaws that project forward to a marked degree.
Show More
Related formsprogna•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.