n. A learning disability in which a person finds it difficult to read and write.
the GNU version of the Collaborative International Dictionary of English
n. an impaired ability to read.
The Century Dictionary and Cyclopedia
n. See the extract.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. impaired ability to learn to read
Word Usage
"And although the term dyslexia was not something I came across until much later in life, when I did I understood immediately that I had a number of its symptoms."