polyconic projection


noun Cartography.

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.

Origin of polyconic projection

First recorded in 1900–05

Words nearby polyconic projection

British Dictionary definitions for polyconic projection

polyconic projection
/ (ˌpɒlɪˈkɒnɪk) /

noun

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