D defs.my
Entry 2 senses Webster, 1913

Homography

/hōmŏʹgrəfĭ/ · Ho·mog·ra·phy · IPA /hoʊˈmɒɡɹəfi/
01 n. That method of spelling in which every sound is represented by a single character, which indicates that sound and no other.
  1. 1.
    That method of spelling in which every sound is represented by a single character, which indicates that sound and no other.
  2. 2.
    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.(Geom.)