Sphericity.

The quality or state of being spherical.

Conversion to a spherical form

(geometry) Shaped like a sphere. / (geometry, not comparable) Of, or pertaining to, spheres.

plural of sphericality

In the manner of a sphere or globe.

plural of sphericity

(chiefly uncountable) The quality of being spherical, being a sphere. / (geometry, countable) The ratio of the surface area of a given particle to the surface area of a sphere with the same volume.

Spherical. / Of or relating to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were set.

(mathematics) The part of geometry and trigonometry that deals with spheres.