11 Trending Words of 2014


[awr-puh-muh nt] /ˈɔr pə mənt/
a mineral, arsenic trisulfide, As 2 S 3 , found usually in soft, yellow, foliated masses, used as a pigment.
1350-1400; Middle English < Old French < Latin auripigmentum pigment of gold; see auri-1, pigment Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for orpiment


a yellow mineral consisting of arsenic trisulphide in monoclinic crystalline form occurring in association with realgar: it is an ore of arsenic. Formula: As2S3
Word Origin
C14: via Old French from Latin auripigmentum gold pigment
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for orpiment

late 13c., from Old French orpiment "arsenic trisulphide, yellow color," from Latin auripigmentum, from aurum "gold" (see aureate) + pigmentum "coloring matter, pigment, paint" (see pigment).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Encyclopedia Article for orpiment

the transparent yellow mineral arsenic sulfide (As2S3), formed as a hot-springs deposit, an alteration product (especially from realgar), or as a low-temperature product in hydrothermal veins. It is found in Copalnic, Romania; Andreas-Berg, Ger.; Valais, Switz.; and Colemerik, Tur. The crystals belong to the monoclinic system. For detailed physical properties, see sulfide mineral (table)

Learn more about orpiment with a free trial on
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Difficulty index for orpiment

Few English speakers likely know this word

Word Value for orpiment

Scrabble Words With Friends

Nearby words for orpiment