spherical

Shaped as a sphere; being a sphere

Of, or pertaining to, spheresrare

Of a coordinate system, specifying the location of a point in a plane by using a radius and two anglesrare

Of or relating to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were setrare

Of a multivariate probability distribution, to have a covariance matrix equal to the identity matrix up to a multiplicative factorrare