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• n  any evidence that helps to establish the falsity of something
• n  the act of determining that something is false

• The balloting was free and unbossed, and in sharp disproof of Communist charges that it was a French-sponsored fraud.
• Over the past year, the effort has produced a mountain of data but little more than a molehill of definite proof or definitive disproof of product plugs.
• The fact that marble veins are indiscriminate in their choice of subject, spiritual and carnal, is no disproof.

• falsification
• refutation
• falsifying
• refutal