geodesic line

Noun
  1. (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) (synset 113893053)
    referred to in: math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
    is a type of: line - a length (straight or curved) without breadth or thickness; the trace of a moving point
    same as: geodesic

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