Definition of polyconic in English:

polyconic

Pronunciation /ˌpɒlɪˈkɒnɪk/

adjective

  • Chiefly Involving or based upon a number of cones; specifically designating a system of map projection in which each parallel of latitude is represented by developing a cone tangent to the earth's surface along that parallel.

noun

  • Chiefly A polyconic projection.

Origin

Mid 19th century. From poly- + conic.