Definitions

from The Century Dictionary.

  • noun Geometry of figures drawn on the surface of a sphere; specifically, spherical trigonometry.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Math.) The doctrine of the sphere; the science of the properties and relations of the circles, figures, and other magnitudes of a sphere, produced by planes intersecting it; spherical geometry and trigonometry.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mathematics The part of geometry and trigonometry that deals with spheres.
  • noun Alternative form of sferics.

Etymologies

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