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

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.

  • Cinnabar, realgar, orpiment and coal form the rest of the mineral products of Kwei-chow.

  • Formerly, under the name of "king's yellow," a preparation of orpiment was in considerable use as a pigment, but now it has been largely superseded by chrome-yellow.

  • Arsenic is a constituent of the minerals arsenical iron, arsenical pyrites or mispickel, tin-white cobalt or smaltite, arsenical nickel, realgar, orpiment, pharmacolite and cobalt bloom, whilst it is also met with in small quantities in nearly all specimens of iron pyrites.

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Words near orpiment in the Dictionary