• WordNet 3.6
    • n sienna an earth color containing ferric oxides; used as a pigment
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Webster's Revised Unabridged Dictionary
    • n Sienna (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.
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Century Dictionary and Cyclopedia
    • n sienna A ferruginous ocherous earth, fine and smooth, used as a pigment in both oil and water-color painting. The finest is that obtained from Italy. Raw sienna is the native pigment prepared by simply drying the material which is taken from the mine or vein and afterward powdering. In composition and appearance it somewhat resembles yellow ocher, but it is deeper in tint and of a browner hue. It gives a highly chromatic orange-yellow, considerably darkened, its luminosity being about half that of a bright chrome-yellow. Its transparency is one of its important qualities, while opacity should be the characteristic of an ocher. Burnt sienna is the raw material roasted in a furnace before powdering. By this means the color is changed to a warm reddish brown similar to old mahogany. It is, like raw sienna, translucent in body.
    • n sienna The color of sienna pigment.
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Chambers's Twentieth Century Dictionary
    • n Sienna si-en′a a fine orange-red pigment used in oil and water-colour painting.
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Webster's Revised Unabridged Dictionary
It. terra di Siena, fr. Siena, in Italy
Chambers's Twentieth Century Dictionary
It. terra di Siena, Sienna earth.


In literature:

He will return about the 10th of October to fetch me, and we all go on to Sienna, to my mother.
"The Child of Pleasure" by Gabriele D'Annunzio
From Genoa he went to Leghorn and Pisa, from Pisa to Florence, thence to Sienna, and on to Rome.
"Sylva, Vol. 1 (of 2)" by John Evelyn
These impressive ancestors rested on pedestals of Sienna marble.
"The Pines of Lory" by John Ames Mitchell
The browns of umber and sienna will make greens with blues.
"The Painter in Oil" by Daniel Burleigh Parkhurst
After he had crossed the great post-road from Sienna to Rome, Gerald entered a tract of almost perfect desolation.
"Gerald Fitzgerald The Chevalier" by Charles James Lever
Sienna, fossil shells of, 39, 74.
"Principles of Geology" by Charles Lyell
He died at Sienna in 1551, and was buried in its cathedral.
"The New Gresham Encyclopedia. Vol. 1 Part 3" by Various
The lower stories are painted a sienna color, and gables and roof a dark slate.
"The Life and Public Services of James A. Garfield" by Emma Elizabeth Brown
Sienna, formations at, 167.
"A Manual of Elementary Geology" by Charles Lyell
Ochino (Bernardino Tommasini), Italian reformer, b. Sienna, 1487.
"A Biographical Dictionary of Freethinkers of All Ages and Nations" by Joseph Mazzini Wheeler
Its ground colour is light sienna, while that of the zebra is nearly white.
"The Young Yagers" by Mayne Reid
My subject was the Sienna School outside of Sienna.
"The Song of Songs" by Hermann Sudermann
Memmi, Simone (of Sienna), 211, 216.
"The Cathedrals of Southern France" by Francis Miltoun
Mattie will attend a year; that will graduate her from the St. Catherine de Sienna's.
"The Story of a Life" by J. Breckenridge Ellis
My object was to get to Empoli before the Sienna goods train, for I knew nothing of what might be behind me.
"The Catholic World; Volume I, Issues 1-6" by E. Rameur
Till a good color is invented, we must content ourselves with ochre, Terra de Sienna, Neapolitan yellow, mineral yellow or chrome.
"The Invention of Lithography" by Alois Senefelder
There are no modern abominations in the way of buildings here, so that one enjoys Sienna with unalloyed pleasure.
"From sketch-book and diary" by Elizabeth Butler
Woods, summer and autumn; colour, sienna-brown; diameter, 4 to 10 inches.
"Mushroom Culture" by W. Robinson
St. Bernardine, of Sienna, I knew of course, and knew too that he had a burning love for our Lord.
"The Catholic World. Volume III; Numbers 1, 2, 3, 4, 5, 6." by E. Rameur
It was well built and richly adorned, and the body of St. Catherine di Sienna lies buried here.
"The Diary of John Evelyn (Vol 1 of 2)" by John Evelyn

In news:

Select a trim to read 2013 Sienna reviews, view current sales, fuel economy, towing capacity, pictures, and more.
Sienna Miller - 2003.
Get incredible options with the 2013 Toyota Sienna .
The Orlando Toyota Sienna delivers major style.
The 2013 Toyota Sienna in Orlando offers stylish and functional touches.
New Toyota Sienna in Orlando for sale.
Jude Law and Sienna Miller.
Sienna Parulis-Cook is an editor and writer based in Beijing.
Sexy starlet Sienna Miller first impressed us with her role in Matthew Vaughn's raucous crime thriller 'Layer Cake.
Sienna Miller Really Likes Our New House.
Items tagged with Sienna Miller.
According to data compiled by, the Toyota Sienna LE is the cheapest car in the US to insure, with an average annual premium for an "average" driver of $1,111.
Rose Dominican Hospitals- Sienna Campus.
Reviewers liked that the 2010 Toyota Sienna offers solid performance, a spacious interior and the highest reliability rating in the class.
My, my, would you just look at our little Sienna .

In science:

But once one has developed modules for the Hyundai Sonata, Chevrolet Equinox, Honda Civic, and Nissan Altima, it should not require much additional work to construct a module for the Toyota Sienna.
Compression Rate Method for Empirical Science and Application to Computer Vision