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disproof

[dis-proof] /dɪsˈpruf/
noun
1.
the act of disproving.
2.
proof to the contrary; refutation.
Origin of disproof
1525-1535
1525-35; dis-1 + proof
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for disproof

disproof

/dɪsˈpruːf/
noun
1.
facts that disprove something
2.
the act of disproving
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for disproof
n.

1530s; see dis- + proof.

Online Etymology Dictionary, © 2010 Douglas Harper
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14
15
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