polyconic projection

American

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.

polyconic projection British

/ 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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of polyconic projection

First recorded in 1900–05

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The latter map is much more easily compared with Hearne's original map than one drawn on the polyconic projection in common use at the present time.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023