from The American Heritage® Dictionary of the English Language, 4th Edition
- n. 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The minimum time over which an electric current must be applied in order to stimulate a muscle fiber or nerve cell.
French : Greek khronos, time + Greek axiā, value (from axios, worthy; see ag- in Indo-European roots).(American Heritage® Dictionary of the English Language, Fourth Edition)
Ancient Greek χρόνος (kronos, "time") + ἄξων (aksōn, "axis") (Wiktionary)