motor area n any of various areas of cerebral cortex believed to be associated with the initiation, coordination, and transmission of motor impulses to lower centers specif a region immediately anterior to the central sulcus having an unusually thick zone of cortical gray matter and communicating with lower centers chiefly through the corticospinal tracts see PRECENTRAL GYRUS
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any area of the cerebral cortex primarily involved in stimulating muscle contractions; often used alone to refer to the primary somatomotor area. See also premotor a., sensorimotor a., and Broca motor speech a.Medical dictionary. 2011.