polyconic projection

noun

, Cartography.

1. a conic projection in which the parallels are arcs of circles that are not concentric but are equally spaced along the central straight meridian, all other meridians being curves equally spaced along the parallels.

polyconic projection

/ ˌpɒlɪˈkɒnɪk /

noun

1. a type of conic projection in which the parallels are not concentric and all meridians except the central one are curved lines. It is neither equal-area nor conformal, but is suitable for maps of areas or countries of great longitudinal extent

Word History and Origins

Origin of polyconic projection¹

First recorded in 1900–05

Example Sentences

The polyconic projection (see fig. 5) is used for most Government maps.

From Project Gutenberg

The polyconic projection is not used for very extensive areas of the earth's surface, as for instance a hemisphere.

From Project Gutenberg