Partial or total loss of the ability to articulate ideas or comprehend spoken or written language, resulting from damage to the brain caused by injury or disease.
[Greek, from aphatos, speechless : a-, not; see a–1 + phatos, spoken, speakable (from phanai, to speak; see –phasia).]aphasiac a·pha'si·ac' (-zē-ăk') n.
aphasic a·pha'sic (-zĭk, -sĭk) adj. & n.