We found 26 dictionaries with English definitions that include the word invalidate:
Click on the first link on a line below to go directly to a page where "invalidate" is defined.
 General (22 matching dictionaries)
- invalidate: American Heritage Dictionary of the English Language [home, info]
- invalidate: Encarta® World English Dictionary, North American Edition [home, info]
- invalidate: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
- invalidate: Wordnik [home, info]
- invalidate: Cambridge International Dictionary of English [home, info]
- invalidate: Wiktionary [home, info]
- invalidate: Webster's New World College Dictionary, 4th Ed. [home, info]
- invalidate: The Wordsmyth English Dictionary-Thesaurus [home, info]
- invalidate: Infoplease Dictionary [home, info]
- invalidate: Dictionary.com [home, info]
- invalidate: UltraLingua English Dictionary [home, info]
- invalidate: Cambridge Dictionary of American English [home, info]
- Invalidate: Online Plain Text English Dictionary [home, info]
- invalidate: Webster's Revised Unabridged, 1913 Edition [home, info]
- invalidate: Rhymezone [home, info]
- Invalidate: AllWords.com Multi-Lingual Dictionary [home, info]
- invalidate: Webster's 1828 Dictionary [home, info]
- invalidate: Free Dictionary [home, info]
- invalidate: Mnemonic Dictionary [home, info]
- invalidate: WordNet 1.7 Vocabulary Helper [home, info]
- invalidate: LookWAYup Translating Dictionary/Thesaurus [home, info]
- invalidate: Dictionary/thesaurus [home, info]
Business (1 matching dictionary)
- invalidate: Legal dictionary [home, info]
Computing (1 matching dictionary)
- invalidate: Encyclopedia [home, info]
Medicine (2 matching dictionaries)
- invalidate: Technical and Popular Medical Terms [home, info]
- invalidate: online medical dictionary [home, info]
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Quick definitions (invalidate)
▸ verb: declare invalid
▸ verb: take away the legal force of or render ineffective ("Invalidateas a contract")
▸ verb: show to be invalid
▸ verb: of cheques or tickets
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