azimuthal equidistant projection

noun

, Cartography.

1. a projection in which the shortest distance between any point and a central point is a straight line, such a line representing a great circle through the central point.

azimuthal equidistant projection

/ ăz′ə-mŭth′əl /

1. An azimuthal map projection designed so that a straight line from the central point on the map to any other point gives the shortest distance between the two points. Azimuthal equidistant maps are used mainly for plotting direction and distance from the map's central point, but measurements originating from other points on the map can be greatly distorted.

Word History and Origins

Origin of azimuthal equidistant projection¹

First recorded in 1940–45