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[in-er-vey-shuh n] /ˌɪn ərˈveɪ ʃən/
the act of innervating; state of being innervated.
Anatomy. the distribution of nerves to a part.
Origin of innervation
First recorded in 1825-35; innervate + -ion
Related forms
innervational, adjective
hyperinnervation, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for innervation
Historical Examples
  • This release of tension is accompanied by a change in innervation and results in a perceptible movement.

    Clever Hans Oskar Pfungst
  • The important differences in innervation between these studies and the present one are discussed below.

  • Yet another clue to the meaning of these muscles is to be found in their innervation, which is very extraordinary and unexpected.

    The Origin of Vertebrates Walter Holbrook Gaskell
  • Their centres of innervation will therefore be stabbed as well, with the leisure which the Mantis, now put out of action, permits.

    More Hunting Wasps J. Henri Fabre
  • Romer gave the innervation of the hip and thigh muscles in the chicken, but did not cover the lumbosacral plexus.

  • It is regarded as a motor or secondary activity, the key to the innervation of which is located in the presentations of the Unc.

    Dream Psychology Sigmund Freud
  • The second important element is the innervation of the muscles in consequence of movement merely seen.

    Criminal Psychology Hans Gross
  • It is the general rule that larvae possess a centre of innervation for each segment.

    More Hunting Wasps J. Henri Fabre
  • The innervation was found in only one leg, in which the twig arises more distally than in T. pallidicinctus.

  • Each ganglion of the ventral chain is formed mainly for the innervation of the appendages.

    The Origin of Vertebrates Walter Holbrook Gaskell
innervation in Medicine

innervation in·ner·va·tion (ĭn'ər-vā'shən)

  1. The arrangement or distribution of nerves to an organ or body part.

  2. The amount or degree of stimulation of a muscle or organ by nerves.

in'ner·va'tion·al (-vā'shə-nəl) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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