Definition of vitiation in English:

vitiation

noun

formal
  • See vitiate

    • ‘A bad guy is no longer simply the opposite of ‘good guy;’ the ensuing but signals the vitiation of the villainous sting of depravity.’
    • ‘Economic duress is unlikely to lead to the vitiation of banking transactions.’
    • ‘Earlier art, music, or literature could reinterpret the Passion over and over again without vitiation.’
    • ‘While not leading to automatic vitiation of the warrant, there remains the need to protect the prior authorization process.’

Pronunciation

vitiation

/vɪʃɪˈeɪʃ(ə)n/