hypognathous

[hahy-pog-nuh-thuh s]

adjective

having the lower jaw or mandible longer than the upper.

Origin of hypognathous

First recorded in 1870–75; hypo- + -gnathous

Related formshy·pog·na·thism, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hypognathous

Historical Examples of hypognathous

Hypognathous: having the mouth parts directed more or less vertically ventrad.
Explanation of Terms Used in Entomology
John. B. Smith

British Dictionary definitions for hypognathous

hypognathous

adjective

having a lower jaw that protrudes beyond the upper jaw
(of insects) having downturned mouthparts

Derived Formshypognathism, noun

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

hypognathous in Medicine

hypognathous

[hī-pŏg′nə-thəs, hī′pō-năth′əs]

adj.

Having a congenitally underdeveloped lower jaw.