[ lat-er-uh-luh-zey-shuh n ]
/ ˌlæt ər ə ləˈzeɪ ʃən /


functional specialization of the brain, with some skills, as language, occurring primarily in the left hemisphere and others, as the perception of visual and spatial relationships, occurring primarily in the right hemisphere.

Origin of lateralization

First recorded in 1885–90; lateral + -ization Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for lateralization


[ lăt′ər-ə-lĭ-zāshən ]


Localization of function attributed to either the right or left side of the brain.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.