Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Impairment of the ability to solve mathematical problems, usually resulting from brain dysfunction.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun pathology Difficulty with numbers and in doing arithmetic.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun impaired ability to learn grade-appropriate mathematics

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[dys– + calcul(ate) + –ia.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From dys-, from Ancient Greek δυς- (dus-, "bad") + calculate, from Latin calculare.

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Examples

  • A poor performance on such tasks is termed dyscalculia or acalculia and is associated with dominant hemisphere often parietal dysfunction.

    The Neuropsychiatric Guide to Modern Everyday Psychiatry Michael Alan Taylor 1993

  • Live Science examines the neuropsychology of numbers, and 'dyscalculia' - impairment in the ability to do mathematical operations.

    Mind Hacks: 2006-03-24 Spike activity 2006

  • Live Science examines the neuropsychology of numbers, and 'dyscalculia' - impairment in the ability to do mathematical operations.

    Mind Hacks: March 2006 Archives 2006

  • Ben and I share something called dyscalculia, or, simply stated, math dyslexia.www. dyscalculia.org, an individual with dyscalculia may have accelerated language skills, poetic and creative ability, and a good visual memory.

    courierpress.com Stories 2010

  • Recent discoveries point at the fact that a medical condition known as dyscalculia, similar in some ways to dyslexia, is responsible for some people not being able to handle even daily calculations, such as paying for products and receiving their change.

    Softpedia News - Global 2009

  • Another focus of Stanislas Dehaene’s work is a condition called dyscalculia, or number blindness, in which one’s number sense is defective.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • Another focus of Stanislas Dehaene’s work is a condition called dyscalculia, or number blindness, in which one’s number sense is defective.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • Another focus of Stanislas Dehaene’s work is a condition called dyscalculia, or number blindness, in which one’s number sense is defective.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

  • It is called dyscalculia and it is just starting to get the attention that dyslexia has gotten.

    Like dyslexia, is there a condition that affects ones ability to do math? « Literacy Skills « Literacy Help « Literacy News 2009

  • Understanding dyscalculia has a social urgency, since adults with low numeracy are much more likely to be unemployed or depressed than their peers.

    HERE’S LOOKING AT EUCLID Alex Bellos 2010

Comments

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  • An innumerate chef is reviled.

    Her recipes can't be compiled.

    Consider if Julia

    Had had dyscalculia:

    She'd not have been our favored Child.

    March 21, 2015