the upper, main part of the brain of vertebrate animals, consisting of left and right hemispheres: in humans it is the largest part of the brain and is believed to control conscious and voluntary processes
See cerebrum in American Heritage Dictionary 4
(sĕrˈə-brəm, sə-rēˈ-)
nounpl.cer·e·brums or cer·e·bra(-brə)
The large rounded structure of the brain occupying most of the cranial cavity, divided into two cerebral hemispheres that are joined at the bottom by the corpus callosum. It controls and integrates motor, sensory, and higher mental functions, such as thought, reason, emotion, and memory.