Geodesic

[,dʒiːə(ʊ)'desɪk;-'diːsɪk] or [,dʒiə'dɛsɪk]

Definition

(noun.) (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).

Edited by Amber--From WordNet

Definition

(a.) Alt. of Geodesical

(n.) A geodetic line or curve.

Editor: Mamie