spherical /ˈsfɛɹɪkəl/ adjective5 •Shaped as a sphere; being a sphere. •Of, or pertaining to, spheres. •Of a coordinate system, specifying the location of a point in a plane by using a radius and two angles. •Of a multivariate probability distribution, to have a covariance matrix equal to the identity matrix up to a multiplicative factor. •Of or relating to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were set.Knaves, thieves, and treachers by spherical predominance. — 1603 formsmore spherical · most spherical