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| ne·gate [ nə gáyt ] (past and past participle ne·gat·ed, present participle ne·gat·ing, 3rd person present singular ne·gates) |
transitive verb |
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| Definition: |
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1. invalidate something: to declare officially that something is invalid or ineffective, or make something invalid or ineffective
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formal
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 Failure to disclose such a change of circumstances would automatically negate the policy.
a theory that negates all previous research
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2. logic prove something is false: to deny the truth of something, or prove something to be false
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| [Early 17th century. < Latin negat-, past participle of negare "deny"] |
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| ne·ga·tor noun |
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