Meaning of sphere | Babel Free

Definitions

1. A surface in three dimensions consisting of all points equidistant from a center. .mw-parser-output .defdate{font-size:smaller}
2. A surface in three dimensions consisting of all points equidistant from a center. .mw-parser-output .defdate{font-size:smaller}
3. An object which appears to be bounded by a sphere; a round object, a ball
4. The celestial sphere: the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded
5. 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)
6. An area of activity for a planet; or by extension, an area of influence for a god, hero etc

Translations

CEFR level