Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The quality of being spherical, being a sphere.
  • n. The ratio of the surface area of a given particle to the surface area of a sphere with the same volume.

from the GNU version of the Collaborative International Dictionary of English

  • n. The quality or state of being spherial; roundness.

from The Century Dictionary and Cyclopedia

  • n. The character of being in the shape of a sphere.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the roundness of a 3-dimensional object

Etymologies

From spheric +‎ -ity. In the geometrical sense, defined by the geologist Hakon Wadell in 1935. (Wiktionary)

Examples

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