chronaxie

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chro·nax·ie

also chro·nax·y  (krō′năk′sē, krŏn′ăk′-)
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.

[French : Greek khronos, time + Greek axiā, value (from axios, worthy; see ag- in Indo-European roots).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

chronaxie

(ˈkrəʊnæksɪ) or

chronaxy

n
(Physiology) 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 response. Compare rheobase
[C20: from French, from chrono- + Greek axia worth, from axios worthy, of equal weight]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

chro•nax•ie

or chro•nax•y

(ˈkroʊ næk si, ˈkrɒn æk-)

n.
the minimum time that an electric current of twice the threshold strength must flow in order to excite a muscle or nerve tissue.
[1915–20; < French, =chron- chron- + -axie < Greek axía worth, value]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
In order to check for sciatic nerve (SN) function, we evaluated chronaxy, rheobase, conduction velocity, and nerve growth factor (NGF) expression levels.
Strengthduration curves with voltage square wave stimulation were used to determine rheobase and chronaxy. Rheobase is defined as the threshold stimulus voltage for an active response with a long duration pulse (1000 ms) and chronaxy is the threshold duration for an active response with a stimulus twice the rheobase.
The electrophysiological parameters measured by extracellular recording were rheobase, chronaxy, PPA, and conduction velocity of CAP components.