all-or-none

(ôl′ər-nŭn′)

adj.

1. Characterized by either a complete response or by a total lack of response or effect, as in neurological action above a threshold.

2. All-or-nothing.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

all′-or-none′

adj.

1. of or pertaining to a process by which a muscle or nerve fiber either responds to a stimulus completely or not at all.

2. all-or-nothing.

[1900–1905]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Adj.

all-or-none - occurring completely or not occurring at all

all-or-nothing

complete - having every necessary or normal part or component or step; "a complete meal"; "a complete wardrobe"; "a complete set of the Britannica"; "a complete set of china"; "a complete defeat"; "a complete accounting"

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