Alternative form of sferics

(mathematics) The part of geometry and trigonometry that deals with spheres.

plural of spherical cap

plural of spherical angle

plural of spherical aberration

plural of spherical wedge

(geometry) A particular dihedral angle, the angle between two intersecting arcs on a sphere, measured by the angle between the planes containing the arcs.

(optics) A type of lens aberration which causes blurriness, particularly away from the centre of the lens.

(geometry) A portion of the surface of a sphere cut off by two vertical planes through the centre of the sphere.

(geometry, uncountable) The geometry of the 2-dimensional surface of a sphere;