nimsepehr (#), nimkoré (#)
Half of a sphere bounded by a great circle, especially one of the halves into which the earth or the celestial sphere is divided.
From L. hemisphærium, from Gk. hemisphairion, from hemi- "half," (from PIE base *semi-; cf. Skt. sami, L. semi-, O.H.G. sami- "half," and O.E. sam-) + sphaira, → sphere.
Fr.: hémisphère nord
Fr.: hémisphère sud