hemisphere

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hemisphere

 [hem´ĭ-sfēr]
half of a spherical or roughly spherical structure or organ.
cerebral hemisphere one of the paired structures constituting the largest part of the brain, which together comprise the extensive cerebral cortex, centrum semiovale, basal ganglia, and rhinencephalon, and contain the lateral ventricle. See also brain.
cerebellar hemisphere either of the paired portions of the cerebellum lateral to the vermis.
dominant hemisphere the cerebral hemisphere that is more concerned than the other in the integration of sensations and the control of many functions. See also laterality.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

hem·i·sphere

(hem'i-sfēr), [TA]
Half a spheric structure.
Synonym(s): hemispherium [TA]
[hemi- + G. sphaira, ball, globe]
Farlex Partner Medical Dictionary © Farlex 2012

hemisphere

(hĕm′ĭ-sfîr′)
n.
1.
a. A half of a sphere bounded by a great circle.
b. A half of a symmetrical, approximately spherical object as divided by a plane of symmetry.
2. Either half of the celestial sphere as divided by the ecliptic, the celestial equator, or the horizon.
3. Either the northern or southern half of the earth as divided by the equator or the eastern or western half as divided by a meridian.
4. Anatomy
a. Either of the lateral halves of the cerebrum; a cerebral hemisphere.
b. Either of the lateral halves of the cerebellum; a cerebellar hemisphere.

hem′i·spher′ic (-sfîr′ĭk, -sfĕr′-), hem′i·spher′i·cal adj.
hem′i·spher′i·cal·ly adv.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

hem·i·sphere

(hem'is-fēr) [TA]
Half of a spheric structure.
Synonym(s): cerebral hemisphere (1) , hemisphericum.
[hemi- + G. sphaira, ball, globe]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Hemisphere

One of the two halves or sides-the left and the right-of the brain.
Mentioned in: Aphasia
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

hem·i·sphere

(hem'is-fēr) [TA]
Half a spheric structure.
[hemi- + G. sphaira, ball, globe]
Medical Dictionary for the Dental Professions © Farlex 2012