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verb (used with or without object), mis·cal·cu·lat·ed, mis·cal·cu·lat·ing.
  1. to calculate or judge incorrectly: to miscalculate the time required.
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Origin of miscalculate

First recorded in 1690–1700; mis-1 + calculate
Related formsmis·cal·cu·la·tion, nounmis·cal·cu·la·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for miscalculate


  1. (tr) to calculate wrongly
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Derived Formsmiscalculation, nounmiscalculator, noun
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

Word Origin and History for miscalculate


1705; from mis- (1) + calculate. Related: Miscalculated; miscalculating.

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Online Etymology Dictionary, © 2010 Douglas Harper