Толковый словарь английского языка Oxford English Reference - spherical

adj. 1 shaped like a sphere; globular. 2 a of or relating to the properties of spheres (spherical geometry). b formed inside or on the surface of a sphere (spherical triangle). Phrases and idioms spherical aberration a loss of definition in the image produced by a spherically curved mirror or lens. spherical angle an angle formed by the intersection of two great circles of a sphere. Derivatives spherically adv. Etymology: LL sphaericus f. Gk sphairikos (as SPHERE)