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What (who) is sphere - definition

ROUND, ROTATIONALLY SYMMETRIC SHAPE OF THE 2D SURFACE OF A BALL IN 3D SPACE

Spherical; 2-sphere; Topological sphere; Hemispherical; Two-sphere; Globose; Spheres; Volume of a sphere; Sphere (geometry); Volume Of A Sphere; Two-dimensional sphere; S²; X^2+y^2+z^2=r^2; Surface area of a sphere; Maschler space; Orb (shape); Spherical surface; Spherical volume; Surface area of the sphere; ⁴⁄₃πr³; Volume of sphere; 1-sphere; Spherical region; Spherical curve; Curve on a sphere; Perfect sphere; Spherule

sphere

(spheres)

1.

A sphere is an object that is completely round in shape like a ball.

N-COUNT

2.

A sphere of activity or interest is a particular area of activity or interest.

...the sphere of international politics.

...nurses, working in all spheres of the health service.

= field

N-COUNT: usu N of n

3.

A sphere of people is a group of them who are similar in social status or who have the same interests.

...the realities of life outside the government and academic spheres of society.

N-COUNT: usu N of n

Sphere

·noun An orbit, as of a star; a socket.

II. Sphere ·noun Rank; order of society; social positions.

III. Sphere ·vt To place in a sphere, or among the spheres; to Insphere.

IV. Sphere ·vt To form into roundness; to make spherical, or spheral; to Perfect.

V. Sphere ·noun Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth.

VI. Sphere ·noun Circuit or range of action, knowledge, or influence; compass; province; employment; place of existence.

VII. Sphere ·noun The extension of a general conception, or the totality of the individuals or species to which it may be applied.

VIII. 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.

IX. 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.

X. 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.

sphere

n.

1.

Globe, ball, orb.

2.

Circuit, circle, compass, province, department, walk, beat, function, vocation, office, employment.

3.

Rank, standing, order.

4.

Region, realm, domain, quarter, country.

5.

Socket, orbit.

Wikipedia

Sphere

A sphere (from Ancient Greek σφαῖρα (sphaîra) 'globe, ball') is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. A sphere is the set of points that are all at the same distance r from a given point in three-dimensional space. That given point is the centre of the sphere, and r is the sphere's radius. The earliest known mentions of spheres appear in the work of the ancient Greek mathematicians.

The sphere is a fundamental object in many fields of mathematics. Spheres and nearly-spherical shapes also appear in nature and industry. Bubbles such as soap bubbles take a spherical shape in equilibrium. The Earth is often approximated as a sphere in geography, and the celestial sphere is an important concept in astronomy. Manufactured items including pressure vessels and most curved mirrors and lenses are based on spheres. Spheres roll smoothly in any direction, so most balls used in sports and toys are spherical, as are ball bearings.

https://en.wikipedia.org/wiki/Sphere

Examples of use of sphere

1. Not long ago, such interfaith fellowship would have been as common in the private sphere as the public sphere.

2. Investigating the military sphere is not sufficient.

3. The first, of course, was the socioeconomic sphere.

4. "The justices carved out this little sphere of individual rights with the Oregon ruling, and I would hope that would migrate into the pain medication sphere," he said.

5. Just as the sphere rose up, one of the passengers emerged from the top, returned to the ground to grab something, then flew back to the sphere.