From Longman Dictionary of Contemporary Englishhemispherehem‧i‧sphere /ˈheməsfɪə $ -fɪr/ ●○○ noun [countable] 1 SEa half of the Earth, especially one of the halves above and below the equator the Northern hemisphere2 HBone of the two halves of your brain3 CFhalf of a sphere (=an object which is round like a ball) —hemispherical /ˌhemɪˈsferɪkəl/ adjective
Examples from the Corpus
hemisphere• It took the form of a hemisphere, with a face carved on the inner surface.• It was bitterly cold inside the aluminium hemisphere.• We think the inhibition is part of an inhibitory surround that helps focus neural activity in the dominant hemisphere.• Voice over Not only birds from the chilly Northern hemisphere live at Slimbridge.• Levels in the northern hemisphere were 9 percent below normal in December 1992 and 11-12 percent below normal in April.• Damage to the corresponding part of the right hemisphere had no effect on speech.• Historically, clinical evidence has been the greatest source of research into differences between the hemispheres.Origin hemisphere (1500-1600) Latin hemisphaerium, from Greek, from hemi- “half” + sphairion “small sphere” 