[no.mo.gram] n [Gk nomos law + ISV -gram--more at nimble] (1908): a graphic representation that consists of several lines marked off to scale and arranged in such a way that by using a straightedge to connect known values on two lines an unknown value can be read at the point of intersection with another line
NOMOGRAM
Meaning of NOMOGRAM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012