HEMISPHERE

hemisphere. hemisphere, (g) halfe of the compasse of heauen, that we see.

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hemisphere. Hemisphere, n. the half of a sphere or globe

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Hem″i‐sphere (?), n. [[L. hemisphaerium, Gr. �; � half = � sphere: cf. F. hémisphère. See Hemi-, and Sphere.]] 1. 1. A half sphere; one half of a sphere or globe, when divided by a plane passing through its center.
2. 2. Half of the terrestrial globe, or a projection of the same in a map or picture.
3. 3. The people who inhabit a hemisphere.
He died . . . mourned by a hemisphere. J. P. Peters. Cerebral hemispheres. (Anat.) See Brain. — Magdeburg hemispheres (Physics), two hemispherical cups forming, when placed together, a cavity from which the air can be withdrawn by an air pump; — used to illustrate the pressure of the air. So called because invented by Otto von Guericke at Magdeburg.