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dyslexia

[dis-lek-see-uh]
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noun Pathology.
  1. any of various reading disorders associated with impairment of the ability to interpret spatial relationships or to integrate auditory and visual information.
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Origin of dyslexia

1885–90; < New Latin < Greek dys- dys- + léx(is) word + -ia -ia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for dyslexia

dyslexia

noun
  1. a developmental disorder which can cause learning difficulty in one or more of the areas of reading, writing, and numeracyNontechnical name: word blindness
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Derived Formsdyslectic (dɪsˈlɛktɪk), adjective, noundyslexic, adjective

Word Origin

from dys- + -lexia from Greek lexis word

usage

Rather than talking about a person being dyslexic or about dyslexics, it is better to talk about a person with dyslexia, people with dyslexia
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 dyslexia

n.

c.1887, from German dyslexie (1883), from Greek dys- "bad, abnormal, difficult" (see dys-) + lexis "word," from legein "speak" (see lecture (n.)). Dyslexic (n.) is first recorded 1961; dyslectic (adj.) from 1964.

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Online Etymology Dictionary, © 2010 Douglas Harper

dyslexia in Medicine

dyslexia

(dĭs-lĕksē-ə)
n.
  1. A learning disorder marked by impairment of the ability to recognize and comprehend written words.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

dyslexia in Science

dyslexia

[dĭs-lĕksē-ə]
  1. A learning disability marked by impairment of the ability to recognize and comprehend written words.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

dyslexia in Culture

dyslexia

[(dis-lek-see-uh)]

Difficulty in reading when experienced by persons with normal vision and normal or above-normal intelligence. A common example of dyslexia is reading words with the letters in reverse order, as in fyl for fly.

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.