lexico-, lexi-, lex-, -lexia, -lexias, -lexic, -lectic, -lexis +

1. Inability to see words or to read; word-blindness.
2. An inability to comprehend the meaning of written or printed words and sentences, caused by a cerebral lesion.
3. A neurologic disorder marked by loss of the ability to understand written or printed language, usually resulting from a brain lesion or a congenital defect; also termed as: "word blindness", "text blindness", and "visual aphasia".

Also called optical alexia, sensory alexia, or visual alexia, in distinction to motor alexia (anarthria), in which there is loss of the power to read aloud although the significance of what is written or printed is understood.

An abnormal slowness in reading.

1. Discolored skin; especially, of the face.
2. Poor or bad complexion.

1. Great difficulty or disruption of the ability to learn to read or to spell.
2. Difficulty in reading due to defects in the brain; specifically, word blindness.
3. An imprecise term concerning a condition in which an individual with normal vision is unable to interpret written language. 4. Impaired reading ability with a competence level below that expected on the basis of the individual’s level of intelligence, and in the presence of apparent normal vision and letter recognition and normal recognition of the meanings of pictures and objects.

A few clarifications regarding dyslexia

Two commonly held beliefs about dyslexia are that children with it see letters or words backward, and that the problem is linked to intelligence.

Both beliefs are considered to be wrong. The problem is a linguistic one, not a visual one, in dyslexia; and dyslexia in no way stems from any lack of intelligence. People with severe dyslexia can be and have been known to be of superior intelligence.

In fact, the effects of dyslexia vary from person to person. The only shared trait among people with dyslexia is that they read at levels significantly lower than is typical for people of their ages. Dyslexia is not the same as reading retardation which may reflect mental retardation or cultural deprivation.

In linguistics, a word or stem that is a meaningful unit in a language as opposed to such a form as part of a grammatical structure.

The plural form of lexicon.

1. Of a vocabulary, or stock of words, as of a language; specifically, of words as isolated items of vocabulary rather than elements in a grammatical structure.
2. Of, or having the nature of, a lexicon or lexicography.

1. To make or coin into a word or accept a new word into the lexicon of a language.
2. The creation of a single word out of existing words, usually in order to express something previously conveyed by several words or a phrase; for example, “shoplifting”.
3. The process of making a word to express a concept.

A person who writes or compiles a dictionary.

The act, process, art, or work of writing or compiling a dictionary or dictionaries.

A reference to the writing or compilation of dictionaries.

One who studies the meanings and origins of words.

1. The branch of linguistics dealing with the use and meanings of words and the relationships between items of vocabulary.
2. The study of the meanings and origins of words.

Dictionary lover.

1. A dictionary or reference book with an alphabetized listing of words and their meanings; especially, one dealing with an ancient language.
2. The special vocabulary of a particular author, field of study, etc.
3. In linguistics, the total stock of morphemes in a language.
4. With artificial intelligence, in a natural language processing system, a table of words with their parts of speech, root words, relations to other words or phrases, semantic features, definitions, and so on, in machine-processable form.
5. Lexicon is the singular spelling while lexica is the plural form.