WordWeight : Weighing the Words

Pronunciation : Ne*ga"tion
Part of Speech : n.
Etymology : [L. negatio, fr. negare to say no, to deny; ne not + the root of aio I say; cf. Gr. ah to say; cf. F. n?gation. See No, adv., and cf. Adage, Deny, Renegade.]
Definition : 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 Ant: affirmation. Our assertions and negations should be yea and nay. Rogers.

2. (Logic)

Defn: 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.
Source : Webster's Unabridged Dictionary, 1913