American English

Definition of negate verb from the Oxford Advanced American Dictionary

      

    negate

     verb
    verb
    NAmE//nɪˈɡeɪt//
     
    (formal)Verb Forms present simple I / you / we / they negate
     
    he / she / it negates
     
    past simple negated
     
    -ing form negating
     
     
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  1. 1negate something to stop something from having any effect synonym nullify Alcohol negates the effects of the drug.
  2. 2negate something to state that something does not exist
See the Oxford Advanced Learner's Dictionary entry: negate