bn:00071492n
Noun Concept
Categories: Iron oxide pigments, All Wikipedia articles written in American English, Shades of brown
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sienna  882D17  Burnt siena  dark sienna  raw sienna
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An earth color containing ferric oxides; used as a pigment WordNet 3.0
Definitions
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Sources
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Sienna is an earth pigment containing iron oxide and manganese oxide. Wikipedia
Clay used in making pigments, and a color Wikipedia Disambiguation
A form of clay containing iron and manganese. Wiktionary
WordNet 3.0 & Open English WordNet
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Wikipedia
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Wikidata
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Wiktionary
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