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opisthognathous

[op-is-thog-nuh-thuh s]
adjective Zoology.
  1. having receding jaws.
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Origin of opisthognathous

First recorded in 1860–65; opistho- + -gnathous
Related formsop·is·thog·na·thism, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for opisthognathous

opisthognathous

adjective
  1. (of a person or animal) having receding jaws
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Derived Formsopisthognathism, noun

Word Origin

C19: from Greek opisthen behind + -gnathous
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