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negate

 - 2 dictionary results

ne⋅gate

  [ni-geyt, neg-eyt] verb, -gat⋅ed, -gat⋅ing.
–verb (used with object)
1. to deny the existence, evidence, or truth of: an investigation tending to negate any supernatural influences.
2. to nullify or cause to be ineffective: Progress on the study has been negated by the lack of funds.
–verb (used without object)
3. to be negative; bring or cause negative results: a pessimism that always negates.
Use negate in a Sentence
Origin:
1615–25; < L negātus (ptp. of negāre to deny, refuse), equiv. to neg- (var. of nec not; see neglect ) + -ā- theme vowel + -tus ptp. suffix

Related forms:
ne⋅ga⋅tor, ne⋅gat⋅er, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
Cite This Source Link To negate
ne·gate   (nĭ-gāt')   
tr.v.   ne·gat·ed, ne·gat·ing, ne·gates

  1. To make ineffective or invalid; nullify.

  2. To rule out; deny. See Synonyms at deny.

  3. Computer Science To perform the machine logic operation NOT gate.


[Latin negāre, negāt-, to deny; see ne in Indo-European roots.]
ne·ga'tor, ne·gat'er n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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