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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.hemispherical - of or relating to or being a hemisphere
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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(ˈhemisfiə) noun
one half of the Earth. Singapore and the British Isles are in the northern hemisphere.
ˌhemiˈspherical (-ˈsfe-) adjective
like half a ball in shape.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
They consist, usually, of a hemispherical bowl of heavy glass in which is packed a compound containing what, according to John Carter, must be radium.
- Northrop Grumman Corporation's (NYSE: NOC) hemispherical resonator gyro (HRG), a sensor known for its unmatched reliability on commercial, government and civil space missions, has reached 50 million operating hours in space without a single mission failure.
A team of researchers at the University of Minnesota have, for the first time, fully 3D printed an array of light receptors on a hemispherical surface.
Besides LAI, the hemispherical photographs quickly provide the spatial and temporal variability of light and solar radiation below the canopy and how this influences the structure characterization and changes in plant development or in the environment.
For on-board antennas with a large planar ground, the beamwidth on the vertical cannot be wider than 180[degrees], and the broadest three-dimensional beam is hemispherical. To guide the design of broad-beam antennas, an ideal hemispherical pattern situation is discussed in this section.
Remarks: Lateral face, hemispherical shell, domed with slight undulations on the surface, with a flap on the shell base, and a small, invaginated buccal tube.
Rolls-Royce will investigate the use of the fully immersive hemispherical display system in the 100-seat facility, for high-end visualisation of its products and associated big data.
Who is responsible for complying with the hemispherical rule?
"Hemi: A History of Chrysler's Iconic V-8 In Competition" by car enthusiast and historian Geoff Stunkard is a profusely illustrated and comprehensive 192 page history of the Hemi -- a hemispherical combustion chamber is a type of combustion chamber with a domed cylinder head.
First of them is terrestrial laser scanning and the second one is digital, hemispherical photography.

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