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orpiment |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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 lemonyellow 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. Our orpiment and sublimed mercurie. --Chaucer. {Red orpiment}, realgar; the red sulphide of arsenic. {Yellow orpiment}, king's yellow. From WordNet r 1.6 [wn]: orpiment n : a yellow mineral occuring in conjunction with realgar; an ore of arsenic
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