'Disproof' definitions:

Definition of 'disproof'

From: WordNet
noun
Any evidence that helps to establish the falsity of something [syn: disproof, falsification, refutation]
noun
The act of determining that something is false [syn: falsification, falsifying, disproof, refutation, refutal]

Definition of 'Disproof'

From: GCIDE
  • Disproof \Dis*proof"\, n. [Pref. dis- + proof. Cf. Disprove.] A proving to be false or erroneous; confutation; refutation; as, to offer evidence in disproof of a statement. [1913 Webster]
  • I need not offer anything farther in support of one, or in disproof of the other. --Rogers. [1913 Webster]