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Definition of CEREBRAL HEMISPHERE. : either of the two hollow convoluted lateral halves of the cerebrum â see brain illustration.
The cerebral cortex in humans. The cerebral cortex consists of right and left halves, called cerebral hemispheres. This diagram provides a view of. the right hemisphere. Each cerebral hemisphere is divided into four lobes (which are highlighted in the bottom inset): the occipital lobe, the parietal. lobe, the temporal lobe, and the frontal lobe.