- A half sphere; one half of a sphere or globe, when
divided by a plane passing through its center. - Half of the terrestrial globe, or a projection of the
same in a map or picture. - The people who inhabit a hemisphere.
Cerebral hemispheres Cerebral hemispheres are the two symmetrical left and right halves of the cerebrum. The right hemisphere controls the left side of the body, the left hemisphere the right side.