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invalidate

美音:[ın´vælı´deıt ]点这儿播放单词美音发声
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vt.使无效

难易程度:

invalidate为短语/超纲词汇

词形变化:

名词:invalidation 动词过去式:invalidated 过去分词:invalidated 现在分词:invalidating 第三人称单数:invalidates

近义词, 同义词

invalidate


/ɪn'vælɪdeɪt; ɪn`vælə,det/
v [Tn] make (sth) invalid 使(某事物)无效或作废
*faulty logic which invalidated her argument 造成她的论据不能成立的错误逻辑. invalidation/ In9vAlI5deIFn; In9vAlE`deFEn/ n [U] (action of) making sth invalid 无效; 作废
*The making of false statements could result in the invalidation of the contract. 提供虚假资料可能导致合同失效.

invalidate


v [T]
to make a document, ticket, claim etc no longer legally or officially acceptable
 Failure to disclose all relevant changes may invalidate your policy.
to show that something such as a belief or explanation is wrong
 Later findings invalidated the theory.