vitiation वाक्य

Instructions and vitiations on how to verify the vote should accompany the announcement of result ( and voting instructions before the vote takes place ).
Just by observing the Laus'behaviour, and consideration of the situation before signing, there was no coercion amounting to a vitiation of consent.
His habit of falling back on lifeless phrases like " broader array of social and political forces, " or " the vitiation of anti-monopoly impulses, " or " fiscal measures and enhanced welfare-state mechanisms " does not help.