'Negation' definitions:

Definition of 'negation'

From: WordNet
noun
A negative statement; a statement that is a refusal or denial of some other statement
noun
The speech act of negating
noun
(logic) a proposition that is true if and only if another proposition is false

Definition of 'Negation'

From: GCIDE
  • Negation \Ne*ga"tion\, n. [L. negatio, fr. negare to say no, to deny; ne not + the root of aio I say; cf. Gr. ?, Skr. ah to say; cf. F. n['e]gation. See No, adv., and cf. Adage, Deny, Renegade.]
  • 1. The act of denying; assertion of the nonreality or untruthfulness of anything; declaration that something is not, or has not been, or will not be; denial; -- the opposite of affirmation. [1913 Webster]
  • Our assertions and negations should be yea and nay. --Rogers. [1913 Webster]
  • 2. (Logic) Description or definition by denial, exclusion, or exception; statement of what a thing is not, or has not, from which may be inferred what it is or has. [1913 Webster]

Synonyms of 'negation'

From: Moby Thesaurus