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hypognathous

[hahy-pog-nuh-thuh s]
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adjective
  1. having the lower jaw or mandible longer than the upper.
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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

  • 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
  1. having a lower jaw that protrudes beyond the upper jaw
  2. (of insects) having downturned mouthparts
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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-pŏgnə-thəs, hī′pō-năthəs)
adj.
  1. Having a congenitally underdeveloped lower jaw.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.