| Hemisphere 1. (n.) A half sphere; one half of a sphere or globe, when divided by a plane passing through its center. 2. (n.) Half of the terrestrial globe, or a projection of the same in a map or picture. 3. (n.) The people who inhabit a hemisphere. Thesaurus Entries ambit, arena, bailiwick, beat, border, borderland, circle, circuit, demesne, department, domain, dominion, field, fifty percent, fifty-fifty, half, half-and-half, judicial circuit, jurisdiction, march, mediety, moiety, orb, orbit, pale, precinct, province, realm, round, semicircle, semisphere, sphere, walk |