Definitions

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

  • n. Loss of the ability to read, usually caused by brain lesions. Also called word blindness.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The inability, due to a cerebral disorder, to comprehend or understand writing.

from the GNU version of the Collaborative International Dictionary of English

  • n. As used by some, inability to read aloud, due to brain disease.
  • n. More commonly, inability, due to brain disease, to understand written or printed symbols although they can be seen, as in case of word blindness.

from The Century Dictionary and Cyclopedia

  • n. Inability to read, as the result of a morbid or diseased condition of nervous centers not involving loss of sight; word-blindness; text-blindness.

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

  • n. inability to perceive written words

Etymologies

a-1 + Greek lexis, speech (from legein, to speak; see leg- in Indo-European roots) + -ia1.
(American Heritage® Dictionary of the English Language, Fourth Edition)
ἀ ("not") + Ancient Greek λέξις ("speech") + -ia (Wiktionary)

Examples

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  • If you can read this you don't have it.

    June 15, 2011