Definitions for sphere
sfɪərsphere

Princeton's WordNet(4.50 / 2 votes)Rate this definition:

1. sphere, domain, area, orbit, field, arena(noun)

   a particular environment or walk of life

   "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit"

2. sphere(noun)

   any spherically shaped artifact

3. sphere, sphere of influence(noun)

   the geographical area in which one nation is very influential

4. sector, sphere(noun)

   a particular aspect of life or activity

   "he was helpless in an important sector of his life"

5. sphere(noun)

   a solid figure bounded by a spherical surface (including the space it encloses)

6. sphere(noun)

   a three-dimensional closed surface such that every point on the surface is equidistant from the center

7. celestial sphere, sphere, empyrean, firmament, heavens, vault of heaven, welkin(noun)

   the apparent surface of the imaginary sphere on which celestial bodies appear to be projected

Wiktionary(1.00 / 2 votes)Rate this definition:

1. sphere(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 .

2. sphere(Noun)

   A spherical physical object; a globe or ball.

3. sphere(Noun)

   The apparent outer limit of space; the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded.

4. sphere(Noun)

   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).

5. sphere(Noun)

   An area of activity for a planet; or by extension, an area of influence for a god, hero etc.

6. sphere(Noun)

   The region in which something or someone is active; one's province, domain.

7. sphere(Noun)

   The set of all points in three-dimensional Euclidean space (or -dimensional space, in topology) that are a fixed distance from a fixed point .

Origin: From sphere, from sphera, earlier sphaera, from σφαῖρα, of unknown origin.

Webster Dictionary(3.00 / 1 vote)Rate this definition:

1. Sphere(noun)

   a body or space contained under a single surface, which in every part is equally distant from a point within called its center

2. Sphere(noun)

   hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth

3. Sphere(noun)

   the apparent surface of the heavens, which is assumed to be spherical and everywhere equally distant, in which the heavenly bodies appear to have their places, and on which the various astronomical circles, as of right ascension and declination, the equator, ecliptic, etc., are conceived to be drawn; an ideal geometrical sphere, with the astronomical and geographical circles in their proper positions on it

4. Sphere(noun)

   in ancient astronomy, one of the concentric and eccentric revolving spherical transparent shells in which the stars, sun, planets, and moon were supposed to be set, and by which they were carried, in such a manner as to produce their apparent motions

5. Sphere(noun)

   the extension of a general conception, or the totality of the individuals or species to which it may be applied

6. Sphere(noun)

   circuit or range of action, knowledge, or influence; compass; province; employment; place of existence

7. Sphere(noun)

   rank; order of society; social positions

8. Sphere(noun)

   an orbit, as of a star; a socket

9. Sphere(verb)

   to place in a sphere, or among the spheres; to insphere

10. Sphere(verb)

    to form into roundness; to make spherical, or spheral; to perfect

Freebase(0.00 / 0 votes)Rate this definition:

1. Sphere

   A sphere is a perfectly round geometrical and circular object in three-dimensional space, such as the shape of a round ball. Like a circle, which, in geometrical contexts, is in two dimensions, a sphere is the set of points which are all the same distance r from a given point in space. This distance r is known as the radius of the sphere, and the given point is known as the center of the sphere. The maximum straight distance through the sphere is known as the diameter. It passes through the center and is thus twice the radius. In mathematics, a distinction is made between the sphere and the ball, a three-dimensional shape which includes the interior of a sphere.

Chambers 20th Century Dictionary(5.00 / 1 vote)Rate this definition:

1. Sphere

   sfēr, n. a ball or globe: an orb or circle: circuit of motion: province or duty: definite range: rank, position in society: (geom.) a surface every point of which is equidistant from one and the same point, called the centre.—adjs. Sphēr′al; Sphere′less.—ns. Sphere′-met′al (Milt.), metal like that of which the celestial spheres were anciently supposed to be made; Sphere′-mū′sic, the music of the spheres.—adjs. Spher′ic, -al, pertaining to, or like, a sphere.—n. Spherical′ity.—adv. Spher′ically.—ns. Spher′icalness, Spheric′ity, state or quality of being spherical: roundness; Spher′icle, a little sphere; Spher′ics, the geometry and trigonometry of the sphere; Sphē′roid, a body or figure nearly spherical, but not quite so—a species of ellipsoid (prolate spheroid, a slightly lengthened sphere; oblate spheroid, a slightly flattened sphere).—adj. Sphēroi′dal, having the form of a spheroid.—ns. Sphēroidi′city, Sphēroid′ity, the state of being spheroidal; Sphē′romēre, one of the symmetrical segments of a radiate; Sphērom′eter, an instrument for measuring the sphericity of portions of spherical surfaces—for example, lenses; Sphē′rosid′erite, the name given to impure or earthy and frequently concretionary varieties of carbonate of iron.—adj. Spher′ūlar.—ns. Spher′ūle, a little sphere; Spher′ūlite, a radiating spherical group of minute acicular crystals common in silicious volcanic rocks.—adjs. Spherūlit′ic; Sphē′ry, spherical, round: belonging to the celestial spheres. [Fr.,—L. sphæra—Gr. sphaira.]

Suggested Resources(0.00 / 0 votes)Rate this definition:

1. sphere

   Song lyrics by sphere -- Explore a large variety of song lyrics performed by sphere on the Lyrics.com website.

British National Corpus

1. Nouns Frequency

   Rank popularity for the word 'sphere' in Nouns Frequency: #2020

Anagrams for sphere »

1. Hesper

2. herpes

How to pronounce sphere?

1. 

   Alex

   US English

   

   Daniel

   British

   

   Karen

   Australian

   

   Veena

   Indian

How to say sphere in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of sphere in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of sphere in Pythagorean Numerology is: 8

Examples of sphere in a Sentence

1. Winston Churchill:

   The power of man has grown in every sphere, except over himself.

2. Marcus Noland:

   In the economics sphere, the regime seems to lack any real strategic vision.

3. Henry Ward Beecher:

   Repentance may begin instantly, but reformation often requires a sphere of years.

4. State Tony Blinken:

   The U.S. and Qatar are partners economically just as we are in the security sphere.

5. David Abrutyn:

   Everybody loves a comeback story, and Aqua Sphere could stand to benefit considerably.

Images & Illustrations of sphere

Popularity rank by frequency of use