VITIATION
Source: 566, 567
vitiation. Vitiation, n. a spoiling, depravation, corruption
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Vi′ti‐a″tion (?), n. [[L. vitiatio.]] 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.