Source : Webster's Revised Unabridged Dictionary (1913)

Confutation \Con`fu*ta"tion\, n. [L. confutatio: cf. F.
   confutation.]
   The act or process of confuting; refutation. ``For the
   edification of some and the confutation of others.'' --Bp.
   Horne.

Source : WordNet®

confutation
     n 1: the speech act of refuting conclusively
     2: evidence that refutes conclusively