1. a muscle of the lower jaw, the action of which assists in lowering the jaw.

Origin of digastric

From the New Latin word digastricus, dating back to 1690–1700. See di-1, gastric
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for digastric

Historical Examples of digastric

British Dictionary definitions for digastric


  1. (of certain muscles) having two fleshy portions joined by a tendon
  1. a muscle of the mandible that assists in lowering the lower jaw

Word Origin for digastric

C17: from New Latin digastricus (with two bellies), from di- 1 + gastricus gastric, from Greek gastēr belly
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

digastric in Medicine


  1. Having two bellies; biventral. Used especially of a muscle with two fleshy parts separated by an intervening tendinous part.
  2. Of or relating to the digastric muscle.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.