[si.no.pia] n, pl -pi.as or -pie [It, fr. L sinopis, fr. Gk sinopis, fr. Sinope Sinop, ancient seaport in Asia Minor] (1844) 1: a red to reddish brown earth pigment used by the ancients that depends for its color on its content of red ferric oxide
2: a preliminary drawing for a fresco done in sinopia