Arsenic trisulfide, As2 S3 , a yellow mineral used as a pigment.
Arsenic trisulfide, As2S3, having a lemon-yellow color and a resinous luster: it is used as a pigment.
Arsenic trisulphide, occurring naturally in crystals or massive deposits, formerly used as a dye or pigment.
Other Word Forms
Origin of orpiment
Middle English from Old French from Latin auripigmentumaurumgoldpigmentumpigmentpigment
American Heritage Dictionary of the English Language, 5th Edition
From Old French, from Latinauripigmentum (“orpiment"), from aurum (“gold") + pigmentum (“pigment").
Orpiment Sentence Examples
Arsenic, in its well-known and beautiful forms, orpiment and realgar, is found in New South Wales and Victoria.
Lead, copper, sulphur, orpiment, also lignite, have been found within the confines of the province; also a kind of beautiful, variegated, translucent marble, which takes a high polish, is used in the construction of palatial buildings, tanks, baths, &c., and is known as Maragha, or Tabriz marble.