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  1. (of a muscle) having two bellies with an intermediate tendon.
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  1. a muscle of the lower jaw, the action of which assists in lowering the jaw.
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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

  • Digastric muscle (for moving the jaws) very much developed in accordance with the great gnawing powers of the species.

    A Hand-book to the Primates, Volume 1 (of 2)

    Henry O. Forbes

  • Passing in front of it may be found the stylo-pharyngeal, stylo-hyoid, and digastric muscles.

British Dictionary definitions for digastric


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

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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.