'Sphericity' definitions:

Definition of 'sphericity'

From: WordNet
noun
The roundness of a 3-dimensional object [syn: sphericity, sphericalness, globosity, globularness, rotundity, rotundness]

Definition of 'Sphericity'

From: GCIDE
  • Sphericity \Sphe*ric"i*ty\, n. [Cf. F. sph['e]ricit['e].] The quality or state of being spherial; roundness; as, the sphericity of the planets, or of a drop of water. [1913 Webster]