invalidate

US [ɪnˈvælɪˌdeɪt]
UK [ɪnˈvælɪdeɪt]
  • v.证明…错误;使站不住脚;使无效;使作废
  • Web证明无效;使失效;使无效力
Simple Present:invalidates  Present Participle:invalidating  Past Tense:invalidated  
invalidate
v.
1.
~ sth
证明…错误;使站不住脚to prove that an idea, a story, an argument, etc. is wrong
This new piece of evidence invalidates his version of events.
这条新证据推翻了他对事件经过的说法。
2.
~ sth
使无效;使作废if youinvalidate a document, contract, election, etc., you make it no longer legally or officially valid or acceptable

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard