the minimum time necessary to excite a tissue, such as that of muscle or nerve cells, with an electric current of twice the rheobase
Origin of chronaxiechron(o)- + Classical Greek axia, value
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.
Origin of chronaxieFrenchGreek khronos time Greek axiā value ( from axios worthy ; see ag- in Indo-European roots.)
Ancient Greek χρόνος (khronos, “time”) + ἄξων (aksōn, “axis”)