One half of the cerebrum or brain, also called a cerebral hemisphere.
From Latin 'hemi-' (half) + 'cerebrum' (brain). This anatomical term refers to the left or right half of the main part of the brain, which contains the frontal, parietal, temporal, and occipital lobes.
Your two hemierebrums are so specialized that the left one handles speech and logic while the right one handles creativity and emotion—split-brain research shows they can even work like two different minds!
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