D defs.my
Entry 1 sense Webster, 1913

Vitiation

· Vi·ti·a·tion · IPA
01 n. The act of vitiating, or the state of being vitiated; depravation; corruption; invalidation; as, the vitiation of the blood; the vitiation …
  1. 1.
    The act of vitiating, or the state of being vitiated; depravation; corruption; invalidation; as, the vitiation of the blood; the vitiation of a contract.
    “The vitiation that breeds evil acts.” G. Eliot.