大たい圏けん航こう路ろ

noun

great circle route

Technical term in navigation and aviation for the shortest path between two points on a sphere.

• 大たい圏けん航こう路ろは、地ち球きゅう上じょうの二に点てん間かんを最さい短たん距きょ離りで結むすぶ航こう路ろです。

  A great circle route is the route that connects two points on the Earth with the shortest distance.