great circle


Definition of great circle

  1. :  a circle formed on the surface of a sphere by the intersection of a plane that passes through the center of the sphere; specifically :  such a circle on the surface of the earth an arc of which connecting two terrestrial points constitutes the shortest distance on the earth's surface between them

Circa 1530

First Known Use of great circle

circa 1530

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a trip made at another's expense

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