Also found in: Thesaurus, Encyclopedia, Wikipedia.
A conic map projection having distances between meridians along every parallel equal to those distances on a globe. The central geographic meridian is a straight line, whereas the others are curved and the parallels are arcs of circles.
(Physical Geography) 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
pol•y•con′ic projec′tion(ˌpɒl iˈkɒn ɪk)
a conic map 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.