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sienna |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Sienna \Si*en"na\, n. [It. terra di Siena, fr Siena in Italy.] (Chem.) Clay that is colored red or brown by the oxides of iron or manganese, and used as a pigment. It is used either in the raw state or burnt. {Burnt sienna}, sienna made of a much redder color by the action of fire. {Raw sienna}, sienna in its natural state, of a transparent yellowish brown color. From WordNet r 1.6 [wn]: sienna n : an earth color containing ferric oxides; used as a pigment
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