sphere
IPA: sfˈɪr
noun
- (mathematics) 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.
- (astronomy, now rare) The celestial sphere: the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded.
- (historical, astronomy, mythology) Any of the concentric hollow transparent globes formerly believed to rotate around the Earth, and which carried the heavenly bodies; there were originally believed to be eight, and later nine and ten; friction between them was thought to cause a harmonious sound (the music of the spheres).
- (mythology) An area of activity for a planet; or by extension, an area of influence for a god, hero etc.
- (figuratively) The region in which something or someone is active; one's province, domain.
- The natural, normal, or proper place (of something).
- (geometry) The set of all points in three-dimensional Euclidean space (or n-dimensional space, in topology) that are a fixed distance from a fixed point .
- (logic, dated) The domain of reference of a proposition, subject, or predicate, or the totality of the particular subjects to which it applies.
verb
- (transitive) To place in a sphere, or among the spheres; to ensphere.
- (transitive) To make round or spherical; to perfect.
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Examples of "sphere" in Sentences
- The device is attached to the sphere.
- The sphere in the center is reflective.
- They trap the monster in the Sphere of Yun.
- The planet is embedded in the epicycle sphere.
- The third is the surface of an ordinary sphere.
- The 3 dimensional analog of the circle is the sphere.
- The mapping of the coordinates to the sphere is correct.
- It belongs to the sphere of the Church, not of the State.
- English was the chief representative of the receptive sphere.
- The axis of this sphere extends beyond its poles and skewers the outer sphere.
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