Looking for the meaning or definition of the word sphere? Here's what it means.
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 [from 14th c.].
A spherical physical object; a globe or ball. [from 14th c.]
(astronomy) The apparent outer limit of space; the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded. [from 14th c.]
(astronomy) 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). [from 14th c.]
(mythology) An area of activity for a planet; or by extension, an area of influence for a god, hero etc. [from 14th c.]
(figuratively) The region in which something or someone is active; one's province, domain. [from 17th c.]
(geometry) The set of all points in three-dimensionalEuclidean space (or n-dimensional space, in topology) that are a fixed distance from a fixed point [from 20th c.].
(logic) The extension of a general conception, or the totality of the individuals or species to which it may be applied.
Verb
(transitive) To place in a sphere, or among the spheres; to ensphere.
