APHASIA

aphasia

(noun) inability to use or understand language (spoken or written) because of a brain lesion

Source: WordNet® 3.1

Etymology

Noun

aphasia (countable and uncountable, plural aphasias)

(pathology) A partial or total loss of language skills due to brain damage. Usually, damage to the left perisylvian region, including Broca's area and Wernicke's area, causes aphasia.

Source: Wiktionary

A*pha"si*a, Aph"a*sy, n. Etym: [NL. aphasia, Gr. aphasie.] (Med.)

Definition: Loss of the power of speech, or of the appropriate use of words, the vocal organs remaining intact, and the intelligence being preserved. It is dependent on injury or disease of the brain.

Source: Webster’s Unabridged Dictionary 1913 Edition