Definitions of sphere

  1. To form into roundness. A right sphere, a sphere whose poles are in the horizon; a parallel sphere, one whose poles are in the zenith and nadir; an oblique sphere, one in any other position. Armillary sphere, see Armillary. Projection of the sphere, see Projection.
  2. any spherically shaped artifact
  3. the geographical area in which one nation is very influential
  4. a solid figure bounded by a spherical surface ( including the space it encloses)
  5. A body or space contained under a single surface, which in every part is equally distant from a point within called its center.
  6. Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth.
  7. 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.
  8. 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.
  9. The extension of a general conception, or the totality of the individuals or species to which it may be applied.
  10. Circuit or range of action, knowledge, or influence; compass; province; employment; place of existence.
  11. Rank; order of society; social positions.
  12. An orbit, as of a star; a socket.
  13. To place in a sphere, or among the spheres; to insphere.
  14. To form into roundness; to make spherical, or spheral; to perfect.
  15. A solid body bounded by a single surface, whose every point is equally distant from a point within called its center; a globe or globelike body; the shape or extent of the heavens; extent or range of knowledge, influence, action, etc.; as, to seek a wider sphere for one's abilities; province; place of existence; social position.
  16. A ball or globe: an orb: circuit of motion: province or duty: rank: ( geom.) a surface every point of which is equidistant from one and the same point, called the centre.
  17. A globe; planet; circuit; province; rank.
  18. A solid every part of whose surface is equidistant from a point within called the center; a globe; planet; star.
  19. Field of action, influence, or existence.
  20. A solid body contained under a single surface, each point in which is equidistant from a central point; an orb or globe of the mundane system; an orbicular body representing the earth or the heavens; circuit; orbit; the vast orbicular expanse in which the heavenly orbs appear; circuit of action, knowledge, or influence; compass; province; employment; order of society.
  21. The vast concave or expanse of the heavens; a globe; a celestial orb; any round solid body; employment; rank; circuit of action, knowledge, or influence.