Noun | 1. | geodesic - (mathematics) the shortest line between two points on a mathematically defined surface (as a straight line on a plane or an arc of a great circle on a sphere) math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement line - a length (straight or curved) without breadth or thickness; the trace of a moving point |
Adj. | 1. | geodesic - of or relating to or determined by geodesy |