hemisphere
noun/ˈhemɪsfɪə(r)/
/ˈhemɪsfɪr/
- one half of the earth, especially the half above or below the equator
- the northern/southern hemisphere
- In the northern hemisphere, December is a winter month.
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- (also cerebral hemisphere)either half of the brain
- the left/right hemisphere of the brain
- one half of a sphere (= a round solid object)Topics Colours and Shapesc2
Word Originlate Middle English (in the sense ‘half the celestial sphere, the sky’): from Old French emisphere, via Latin from Greek hēmisphairion, from hēmi- ‘half’ + sphaira ‘sphere’.
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