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The Collaborative International Dictionary
Innervation

Innervation \In`ner*va"tion\, n. [Cf. F. innervation.]

  1. The act of innerving or stimulating.

  2. (Physiol.) Special activity excited in any part of the nervous system or in any organ of sense or motion; the nervous influence necessary for the maintenance of life, and the functions of the various organs.

  3. (Anat.) The distribution of nerves in an animal, or to any of its parts.

Wiktionary
innervation

n. 1 The act of innervate or stimulate. 2 Special activity excited in any part of the nervous system or in any organ of sense or motion; the nervous influence necessary for the maintenance of life,and the functions of the various organs. 3 The distribution of nerves in an animal, or to any of its parts.

WordNet
innervation
  1. n. the neural or electrical arousal of an organ or muscle or gland [syn: excitation, irritation]

  2. the distribution of nerve fibers to an organ or body region

Usage examples of "innervation".

Sterility may result from impaired ovarian innervation or undue excitement of the nerves, either of which deranges the process of ovulation.

Although de Sinety, as shown above, had practised the ablation of the mammary glands during lactation, it would seem that mutilation rather than complete ablation preceded his experiments on the innervation of the mammary nerve.