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invalidate

audio pronunciation audio pronunciation
verb
  • make invalid [Barron]

More word meanings for invalidate
from leading online dictionaries:

Wiktionary:
invalidate @ wiktionary
WordNet:
invalidate @ wordnet.princeton.edu
Merriam-Webster Online:
invalidate @ M-W.com
MSN Encarta:
invalidate @ Encarta
American Heritage Dictionary of the English Language:
invalidate @ AHD provided by Yahoo! Education
Answers.com:
invalidate @ Answers.com
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