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Definition of: chronaxy
(krō′nak·sē) noun Physiol.
The time that a current of twice the rheobase requires to excite a muscle, nerve fiber, etc. Also chro′·nax·ie, chro·nax·i·a (krō·nak′sē·ə). [<CHRON(O)- + Gk. axia value]
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