• synonyms


  1. located or occurring within a muscle.
Show More

Origin of intramuscular

First recorded in 1870–75; intra- + muscular
Related formsin·tra·mus·cu·lar·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for intramuscular

Historical Examples

  • The difference between the intramuscular and subcutaneous injection is even more marked.

    The Toxicity of Caffein

    William Salant

  • In Grade II (moderate) bites, the intramuscular injection on the side of the bite may suffice.

  • The only explanation of this is that curare does not act centrally, but paralyses the intramuscular ends of the motor nerves.

  • In addition to the foregoing, good results have attended the use of intramuscular injections of oxygen.

    Lameness of the Horse

    John Victor Lacroix

  • In the intramuscular injection of mercury salts it is by no means a matter of indifference what salt we employ.

British Dictionary definitions for intramuscular


  1. anatomy within a musclean intramuscular injection Abbreviation (esp of an injection): IM, i.m
Show More
Derived Formsintramuscularly, adverb
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

Word Origin and History for intramuscular


1874, from intra- + muscular.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

intramuscular in Medicine


  1. Within a muscle.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.