'Homography' definitions:

Definition of 'Homography'

From: GCIDE

Homography \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. [1913 Webster]
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. [1913 Webster]