vitiate - definition and synonyms

verb [transitive] very formal 

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/ˈvɪʃieɪt/
present tense
I/you/we/theyvitiate
he/she/itvitiates
present participlevitiating
past tensevitiated
past participlevitiated

derived word

vitiation

 

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/ˌvɪʃiˈeɪʃ(ə)n/
noun [uncountable]