biconditional

noun
bi·con·di·tion·al | \ˌbī-kən-ˈdish-nəl, -ˈdi-shə-\

Definition of biconditional 

: a relation between two propositions that is true only when both propositions are simultaneously true or false — see Truth Table

First Known Use of biconditional

1940, in the meaning defined above

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Dictionary Entries near biconditional

bicommunal

bicomponent

biconcave

biconditional

bicondylar

bicone

biconical

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The first known use of biconditional was in 1940

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not any or not one

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