orpiment
a mineral, arsenic trisulfide, As2S3, found usually in soft, yellow, foliated masses, used as a pigment.
Origin of orpiment
1Words Nearby orpiment
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How to use orpiment in a sentence
First, the reaction of orpiment with light created a highly mobile type of arsenic called arsenolite.
A pigment’s shift in chemistry robbed a painted yellow rose of its brilliance | Carolyn Gramling | June 8, 2022 | Science NewsThe crystals lack the bright color of the orpiment — instead, they are colorless and flatten the flower’s appearance.
A pigment’s shift in chemistry robbed a painted yellow rose of its brilliance | Carolyn Gramling | June 8, 2022 | Science Newsorpiment, which is termed ἁρσενικὁν in Greek, is dug up in Pontus.
Ten Books on Architecture | VitruviusRhusma, rus′ma, n. a mixture of quicklime and orpiment, used as a depilatory.
The finest specimens come from Persia, in brilliant yellow masses, of a lamellar texture, called golden orpiment.
A Dictionary of Arts, Manufactures and Mines | Andrew Ure
The finest kinds of native orpiment are reserved for artists; the inferior are used for the indigo vat.
A Dictionary of Arts, Manufactures and Mines | Andrew UreCinnabar, realgar, orpiment and coal form the rest of the mineral products of Kwei-chow.
British Dictionary definitions for orpiment
/ (ˈɔːpɪmənt) /
a yellow mineral consisting of arsenic trisulphide in monoclinic crystalline form occurring in association with realgar: it is an ore of arsenic. Formula: As 2 S 3
Origin of orpiment
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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