reductio

1 definition found

reductio - WordNet (r) 2.1 (2005) :

  reductio
      n 1: (reduction to the absurd) a disproof by showing that the
           consequences of the proposition are absurd; or a proof of a
           proposition by showing that its negation leads to a
           contradiction [syn: reductio ad absurdum, reductio]