Source : Webster's Revised Unabridged Dictionary (1913)

Falsification \Fal`si*fi*ca"tion\, n. [Cf. F. falsification.]
   1. The act of falsifying, or making false; a counterfeiting;
      the giving to a thing an appearance of something which it
      is not.

            To counterfeit the living image of king in his
            person exceedeth all falsifications.  --Bacon.

   2. Willful misstatement or misrepresentation.

            Extreme necessity . . . forced him upon this bold
            and violent falsification of the doctrine of the
            alliance.                             --Bp.
                                                  Warburton.

   3. (Equity) The showing an item of charge in an account to be
      wrong. --Story.

Source : WordNet®

falsification
     n 1: any evidence that helps to establish the falsity of
          something [syn: {disproof}, {refutation}]
     2: a willful perversion of facts [syn: {misrepresentaation}]
     3: the act of rendering something false as by fraudulent
        changes (of documents or measures etc.) or counterfeiting
        [syn: {falsehood}]
     4: the act of determining that something is false [syn: {falsifying},
         {disproof}, {refutation}]