left brain, left hemisphere - the cerebral hemisphere to the left of the corpus callosum that controls the right half of the body

cortical area, cortical region - any of various regions of the cerebral cortex

Broca's area, Broca's center, Broca's convolution, Broca's gyrus, convolution of Broca - the motor speech center in the left hemisphere of the brain in most people

Wernicke's area, Wernicke's center - the auditory word center; located in the posterior part of the superior temporal convolution in most people