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dyscalculia

[dis-kal-kyoo-lee-uh]
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noun
  1. acalculia.
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Origin of dyscalculia

First recorded in 1950–55; dys- + calcul(ate) + -ia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for dyscalculia

dyscalculia

noun
  1. severe difficulty in making simple mathematical calculations, due to cerebral disease or injury
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Word Origin

C20: from dys- + Latin calculare to calculate
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
dyscalculia in Medicine

dyscalculia

(dĭs′kăl-kyōō′lē-ə)
n.
  1. Impairment of the ability to solve mathematical problems, usually resulting from brain dysfunction.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.