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sphere
1[sfeer]
noun
Geometry.
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: x 2 + y 2 + z 2 = r 2 .
the surface of such a figure; a spherical surface.
any rounded body approximately of this form; a globular mass, shell, etc.
Astronomy.
a planet or star; heavenly body.
any of the transparent, concentric, spherical shells, or layers, in which, according to ancient belief, the planets, stars, and other heavenly bodies were set.
the place or environment within which a person or thing exists; a field of activity or operation.
to be out of one's professional sphere.
Synonyms: , , , , ,a particular social world, stratum of society, or walk of life.
His social sphere is small.
Synonyms: ,a field of something specified.
a sphere of knowledge.
verb (used with object)
to enclose in or as if in a sphere.
to form into a sphere.
to place among the heavenly spheres.
-sphere
2a combining form of sphere (planisphere ); having a special use in the names of the layers of gases and the like surrounding the earth and other celestial bodies (ionosphere ).
-sphere
1combining form
having the shape or form of a sphere
bathysphere
indicating a spherelike enveloping mass
atmosphere
sphere
2/ ɪə /
noun
maths
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: ( –a )² + ( –b )² + ( –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
any object having approximately this shape; globe
the night sky considered as a vaulted roof; firmament
any heavenly object such as a planet, natural satellite, or star
(in the Ptolemaic or Copernican systems of astronomy) one of a series of revolving hollow globes, arranged concentrically, on whose transparent surfaces the sun (or in the Copernican system the earth), the moon, the planets, and fixed stars were thought to be set, revolving around the earth (or in the Copernican system the sun)
particular field of activity; environment
that's out of my sphere
a social class or stratum of society
verb
to surround or encircle
to place aloft or in the heavens
sphere
A three-dimensional geometric surface having all of its points the same distance from a given point.
Other 51Թ Forms
- sphereless adjective
- spherelike adjective
- subsphere noun
- unsphering adjective
- -spheric combining form
51Թ History and Origins
Origin of sphere1
51Թ History and Origins
Origin of sphere1
Example Sentences
The broad view is that, for the US, countering China and keeping the Pacific in their sphere of influence is still crucial.
She also broke through the Disney sphere, appearing in the popular 2006 sequel of “The Cheetah Girls 2” as Marisol, a Spanish pop star and competitor of the titular girl band.
In recent months she has noticed a ramping up of not only a strict policy of "Russification" in the city, but of an increased militarisation of all spheres of life, including in schools.
And Einstein was echoing French mathematician Blaise Pascal, who wrote in the 17th century that “we sail within a vast sphere, ever drifting in uncertainty.”
"Not only was there another girl in that sphere, but she was really good. She played basketball and tennis, but, in terms of her sporting career, it could have been football instead of cricket."
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