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Meaning of electrotonus

e•lec•trot•o•nus

Pronunciation: (i-lek-trot'n-us, ē"lek-), [key]
— n. Physiol.
  1. the altered state of a nerve during the passage of an electric current through it.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.