Main Entry: chron·ax·ie

Variant(s): also chron·axy \ˈkrō-ˌnak-sē, ˈkrä-\

Function: noun

Etymology: French chronaxie, from chron- + Greek axia value, from axios worthy — more at axiom

Date: 1922

: the minimum time required for excitation of a structure (as a nerve cell) by a constant electric current of twice the threshold voltage