The Collaborative International Dictionary of English v.0.48:
Sinopia \Si*no"pi*a\, Sinopis \Si*no"pis\, n. A red pigment made from sinopite. [1913 Webster]WordNet (r) 3.0 (2006):
sinopia n 1: a red ocher formerly used as a pigment [syn: sinopis, sinopia, sinoper]