Definition of orpiment in English:

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orpiment

Pronunciation: /ˈɔːpɪm(ə)nt/

noun

[mass noun]
A bright yellow mineral consisting of arsenic trisulphide, formerly used as a dye and artist’s pigment.
Example sentences
  • Commonly associated minerals include orpiment, stibnite, a variety of sulfides and sulfosalts, calcite, and barite.
  • Jet is black and shiny when polished, and was sometimes inlaid with tin, calcium carbonate or orpiment, a yellow mineral imported from France and Germany.
  • Of these, lead white, red ochre, red lake, orpiment and Prussian blue do not appear in the 1892 list; but all these pigments have been found elsewhere in Watts's oeuvre.

Origin

Late Middle English: via Old French from Latin auripigmentum, from aurum 'gold' + pigmentum 'pigment'.

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