Source : Webster's Revised Unabridged Dictionary (1913)

Orthomorphic \Or`tho*mor"phic\, a. [Ortho- + morphic.] (Geom.)
   Having the right form.

   {Orthomorphic projection}, a projection in which the angles
      in the figure to be projected are equal to the
      corresponding angles in the projected figure.

Source : WordNet®

orthomorphic projection
     n : a map projection in which a small area is rendered in its
         true shape [syn: {conformal projection}]