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See more synonyms for lockjaw on Thesaurus.com
noun Pathology.
  1. tetanus in which the jaws become firmly locked together; trismus.
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Origin of lockjaw

First recorded in 1795–1805; lock1 + jaw1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

trismus, tetanus

Examples from the Web for lockjaw

Historical Examples

  • I'm afraid this hospital nursing is going to be a lockjaw business.

    The Christian

    Hall Caine

  • And when he goes to the Tynwald Coort there, it'll be lockjaw and the measles with some of them.

    The Manxman

    Hall Caine

  • I hope I won't have lockjaw—it's harder on a woman than it is on a man anytime.

  • Another, a victim of lockjaw, only yielded to the influence of chloroform.

    Woman's Work in the Civil War

    Linus Pierpont Brockett

  • To prevent Lockjaw, from a Nail run into the Foot, or any other injury.

British Dictionary definitions for lockjaw


  1. pathol a nontechnical name for trismus, tetanus
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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

lockjaw in Medicine


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