Characterized by either a complete response or by a total lack of response or effect, depending on the strength of the stimulus. Neurons have an all-or-none response to impulse transmission and cannot be partially stimulated.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Examples from the Web for all-or-none
Historical Examples of all-or-none
It was an all-or-none reaction; the legs spurned the ground in perfect unison and with every bit of the power in them.Rastignac the Devil
Philip Jos Farmer