Akademik
hemisphere
noun
/ˈhɛmɪsfɪə,ˈhɛmɪsfɪər/
a)
Half of the
celestial sphere
, as divided by either the
ecliptic
or the
celestial equator
.
b)
A realm or domain of activity .
Syn
:
celestial hemisphere, terrestrial hemisphere,
sphere
, half-sphere, half sphere,
cerebral hemisphere
,
planisphere
Wikipedia foundation
.