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 table

1940

Next Word in the Dictionary: bicondylarPrevious Word in the Dictionary: biconcaveAll Words Near: biconditional

What made you want to look up biconditional? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears