nomograph

(nŏmˈə-grăfˌ, nōˈmə-) or nom·o·gram (-grămˌ)

1. A graph consisting of three coplanar curves, each graduated for a different variable so that a straight line cutting all three curves intersects the related values of each variable.
2. A chart representing numerical relationships.

Related Forms:

• nomˌo·graphˈic adjective

• no·mogˈra·phy (nō-mŏgˈrə-fē) noun