Meaning of polyconic projection

polycon'ic projec'tion

Pronunciation: [key]
— Cartog. Cartog.
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.