\Ho*mog"ra*phy\, n.
1. That method of spelling in which every sound is
   represented by a single character, which indicates that
   sound and no other.

2. (Geom.) A relation between two figures, such that to any
   point of the one corresponds one and but one point in the
   other, and vise versa. Thus, a tangent line rolling on a
   circle cuts two fixed tangents of the circle in two sets
   of points that are homographic.