Source : Webster's Revised Unabridged Dictionary (1913)

Stereographic \Ste`re*o*graph"ic\, Stereographical
\Ste`re*o*graph"ic*al\, a. [Cf. F. st['e]r['e]ographique.]
   Made or done according to the rules of stereography;
   delineated on a plane; as, a stereographic chart of the
   earth.

   {Stereographic projection} (Geom.), a method of representing
      the sphere in which the center of projection is taken in
      the surface of the sphere, and the plane upon which the
      projection is made is at right andles to the diameter
      passing through the center of projection.