- a solid geometric figure generated by the revolution of a semicircle about its diameter; a round body whose surface is at all points equidistant from the center. Equation: x2 + y2 + z2 = r2.
- the surface of such a figure; a spherical surface.
verb (used with object), sphered, spher·ing.
Origin of sphere
Synonyms for sphere
Related Words for sphereplanet, circle, orb, field, realm, scope, ball, globe, pill, globule, earth, pellet, round, apple, function, jurisdiction, terrain, rank, employment, ground
Examples from the Web for sphere
Contemporary Examples of sphere
This may be precisely the point: that fiction at its best is a sphere of suspended belief as much as suspended disbelief.The Birth of the Novel
November 27, 2014
In almost every sphere of life, the trend is to trade in ownership for access.How Young People Are Destroying Liberty
October 11, 2014
At that point, a sphere lit up, resembling the landing of the UFO in E.T., and the overheard lights descended on the stage.I'm Not Country or Pop. I'm Just Pure Garth Brooks.
September 10, 2014
And while I may have put a bunch of stunt guys in peril on Titanic, it was my ass in the sphere on the dive.James Cameron Dives into the Ocean's Abyss
July 21, 2014
Business decisions sometimes operate in a sphere almost devoid of morality.Video Games Need More Than Damsels and Dames
June 18, 2014
Historical Examples of sphere
There was nothing in her behaviour to indicate a consciousness of error from her sphere.Weighed and Wanting
And in the sphere of thought, no less than in the sphere of time, motion is no more.De Profundis
I've been living very economically for the sphere that seemed open to me.The Bacillus of Beauty
Moreover, it did not take him out of his own sphere—the sphere which is watched by the police.The Secret Agent
Alice herself was to be removed from the sphere of her humble calling.Alice, or The Mysteries, Complete
- a three-dimensional closed surface such that every point on the surface is equidistant from a given point, the centre
- the solid figure bounded by this surface or the space enclosed by it. Equation: (x–a)² + (y–b)² + (z–c)² = r ², where r is the radius and (a, b, c) are the coordinates of the centre; surface area: 4π r ²; volume: 4π r ³/3
verb (tr) mainly poetic
Word Origin for sphere
n combining form
1530s, restored spelling of Middle English spere (c.1300) "space, conceived as a hollow globe about the world," from Old French espere (13c.), from Latin sphaera "globe, ball, celestial sphere," from Greek sphaira "globe, ball," of unknown origin.
Sense of "ball, body of globular form" is from late 14c. Medieval astronomical meaning "one of the 8 (later 10) concentric, transparent, hollow globes believed to revolve around the earth and carry the heavenly bodies" is from late 14c.; the supposed harmonious sound they made rubbing against one another was the music of the spheres (late 14c.). Meaning "range of something" is first recorded c.1600 (e.g. sphere of influence, 1885, originally in reference to Anglo-German colonial rivalry in Africa). A spherical number (1640s) is one whose powers always terminate in the same digit as the number itself (5,6, and 10 are the only ones).