Dis*prov"al (?), n. Act of disproving; disproof. [R.]

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Dis*prove" (?), v. t. [imp. & p. p. Disproved (?); p. pr. & vb. n. Disproving.] [Pref. dis- + prove: cf. OF. desprover.] 1. To prove to be false or erroneous; to confute; to refute.

That false supposition I advanced in order to disprove it.