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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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.hemispherical - of or relating to or being a hemisphere
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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.
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.
The approach described here is to push a hemispherical probe into an elastomer sheet surface stretching it until failure.
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.
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.
It is common practice for ATC to disregard the hemispherical rule when expedient.
Hemispherical photography, carried out with fish-eye lenses for instance, allowing for imaging a large area of surrounding space in just single picture.
Based on these facts, the objective of this study was to estimate the LAI by indirect methods (canopy analyzer and hemispherical photographs) in stands of Eucalyptus clones in two distinct physical-climatic sites in Rio Doce basin, Minas Gerais state, Brazil.
Introduction to hemispherical photography in forestry
These digital cameras, which are hemispherical and flexible like their insectoid counterparts, offer nearly inf inite depth of f ield, and a full 180-degree f ield of view with zero image aberration An interdisciplinary team of computer scientists and engineers, led by John Rogers of the University of Illinois at Urbana-Champaign, has succeeded in building the first digital cameras that mimic the compound, many-faceted eyes of dragonflies, bees, and other insects.
This sculptural wire-coiled beauty has a colourful hemispherical plastic shade in zingy yellow and, while it's a stretch at PS675, you'll love it for years to come.
Full 180 degree fields of view with zero aberrations can only be accomplished with image sensors that adopt hemispherical layouts - much different than the planar CCD chips found in commercial cameras," Rogers, a Swanlund Chair Professor at the University of Illinois at Urbana-Champaign explained.
Taking cues from Mother Nature, the cameras exploit large arrays of tiny focusing lenses and miniaturized detectors in hemispherical layouts, just like eyes found in arthropods.