Found 2 items, similar to orpiment.
English → English (WordNet) Definition: orpiment orpiment n : a yellow mineral occuring in conjunction with realgar; an ore of arsenic
English → English (gcide) Definition: Orpiment Orpiment \Or"pi*ment\, n. [F., fr. L. auripigmentum; aurum gold + pigmentum pigment. Cf. Aureate, Pigment, Orpin, Orpine.] (Chem.) Arsenic sesquisulphide, produced artificially as an amorphous lemon-yellow powder, and occurring naturally as a yellow crystalline mineral; -- formerly called auripigment. It is used in king's yellow, in white Indian fire, and in certain technical processes, as indigo printing. [1913 Webster] Our orpiment and sublimed mercurie. --Chaucer. [1913 Webster] Red orpiment, realgar; the red sulphide of arsenic. Yellow orpiment, king's yellow. [1913 Webster]