Lewis & Short

contāmĭnātĭo, ōnis, f. [contamino] (post-class.).

  1. I. A polluting, contamination, defilement: mulieris, Dig. 48, 5, 2: expositionis, Arn. 5, 168.
  2. * II. Corruption, disease: ventris, Jul. Obseq. Prodig. 89.