or chro·nax·y

[ kroh-nak-see, kron-ak- ]
/ ˈkroʊ næk si, ˈkrɒn æk- /

noun Physiology.

the minimum time that an electric current of twice the threshold strength must flow in order to excite a tissue.

Origin of chronaxie

1915–20; < French, equivalent to chron- chron- + -axie < Greek axía worth, value Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for chronaxie



/ (ˈkrəʊnæksɪ) /


physiol the minimum time required for excitation of a nerve or muscle when the stimulus is double the minimum (threshold) necessary to elicit a basic responseCompare rheobase

Word Origin for chronaxie

C20: from French, from chrono- + Greek axia worth, from axios worthy, of equal weight
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

Medical definitions for chronaxie


n. pl. chro•nax•ies

The minimum interval of time necessary to electrically stimulate a muscle or nerve fiber, using twice the minimum current needed to elicit a threshold response.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.