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polyconic projection

noun poly·con·ic projection \ˌpä-lē-ˈkä-nik-\

Definition of polyconic projection

  1. :  a map projection consisting of a composite series of concentric cones each of which before being unrolled has been placed over a sphere so as to be tangent to a different parallel of latitude

Circa 1864

First Known Use of polyconic projection

circa 1864

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