from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A special clay containing iron and manganese oxides, used as a pigment for oil and watercolor painting.
- n. Raw sienna.
- n. Burnt sienna.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a form of clay containing iron and manganese.
- n. a pigment with a reddish-brown colour.
- n. a light reddish-brown colour.
- adj. having a reddish-brown colour.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
from The Century Dictionary and Cyclopedia
- n. A ferruginous ocherous earth, fine and smooth, used as a pigment in both oil and water-color painting.
- n. The color of sienna pigment.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an earth color containing ferric oxides; used as a pigment
Short for terra-sienna, from Italian terra di Sienna, earth of Siena, after Siena .(American Heritage® Dictionary of the English Language, Fourth Edition)
From Italian terra di Sienna, "earth of Siena", Siena being the most notable Renaissance location of the clay (Wiktionary)