eng
spherical coordinate system
two- or three-dimensional coordinate system in Euclidean space in which position is specified by two angular coordinates and (in the three-dimensional case) one distance coordinate
Note to entry: Not to be confused with an ellipsoidal coordinate system based on an ellipsoid 'degenerated' into a sphere.
[SOURCE: ISO 19111:2019/Amd.2:2023, 3.1.60]