[ ôl′ər-nŭn′ ]
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.
Words nearby all-or-none
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Example sentences from the Web for 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