Pronunciation: (sfer'i-kul, sfēr'-), [key]
1. having the form of a sphere; globular.
2. formed in or on a sphere, as a figure.
3. of or pertaining to a sphere or spheres.
4. pertaining to the heavenly bodies, or to their supposed revolving spheres or shells.
5. pertaining to the heavenly bodies regarded astrologically as exerting influence on humankind and events. Also,spher'ic.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

sphere of influencespherical aberration
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