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sphere
/sfɪə/
noun
A regular three-dimensional object in which every cross-section is a circle; the figure described by the revolution of a circle about its diameter .
A spherical physical object; a globe or ball.
The apparent outer limit of space; the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded.
verb
To place in a sphere, or among the spheres; to ensphere.
To make round or spherical; to perfect.
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