Orpiment definition

ôrpə-mənt
Arsenic trisulfide, As2 S3 , a yellow mineral used as a pigment.
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Arsenic trisulfide, As2S3, having a lemon-yellow color and a resinous luster: it is used as a pigment.
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Arsenic trisulphide, occurring naturally in crystals or massive deposits, formerly used as a dye or pigment.
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Other Word Forms

Noun

Singular:
orpiment
Plural:
orpiments

Origin of orpiment

  • Middle English from Old French from Latin auripigmentum aurum gold pigmentum pigment pigment

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French, from Latin auripigmentum (“orpiment"), from aurum (“gold") + pigmentum (“pigment").

    From Wiktionary