Sphericity

Origin

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

Full definition of sphericity

Noun

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

Synonyms

• (being a sphere) sphericality, sphericalness, sphereness; orbicularity, roundness