sienna


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sienna:

see ocherocher
, mixture of varying proportions of iron oxide and clay, used as a pigment. It occurs naturally as yellow ocher (yellow or yellow-brown in color), the iron oxide being limonite, or as red ocher, the iron oxide being hematite.
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sienna

[sī′en·ə]
(materials)
Any of various yellowish-brown earthy substances consisting of hydrated iron oxide occurring in limonite; becomes orange-brown when burnt and is generally darker and more transparent in oils than is ocher; used as pigment for oil paints and stains.

sienna

A naturally occurring pigment, chiefly oxides of iron; yellow-brown when mined. When calcined, a dark, rich color; then called burnt sienna.

sienna

1. a natural earth containing ferric oxide used as a yellowish-brown pigment when untreated (raw sienna) or a reddish-brown pigment when roasted (burnt sienna)
2. the colour of this pigment
References in periodicals archive ?
Announcing the news on her Instagram with a picture of the baby scan she said: "This has been so hard to keep quiet but today was the day @lewisdevine and I got to tell Sienna the best news!!!
Such forward-looking statements involve substantial risks and uncertainties that could cause Sienna's clinical development programs, future results, performance or achievements to differ significantly from those expressed or implied by the forward-looking statements.
"It's been a very emotional day, seeing her in her little uniform I've done nothing but cry!" But she added: "I am sure school will help Sienna to thrive and she will surprise us just like she always has."
Sienna was wearing sandals when she was taken to Cardiff on a shopping trip for new shoes.
The Norfolk-born mum gave birth to Sienna at London's Chelsea & Westminster Hospital in 2007.
KEW MEDIA paid consideration on closing of CDN 3.0m for Sienna, comprising CDN 2,580,000 in cash and CDN 420,000 in class B Shares, representing a multiple of 2.7 times estimated annual trailing adjusted EBITDA of CDN 1.1m.
And to make things worse, they are living in a sparse apartment, 15 storeys up, with a live-in teacher and housekeeper Ling - a mean woman with a strange manner that arouses suspicion in young Sienna.
Perhaps most notable for drivers who know how difficult it can be to see what's behind a van while backing up, every 2015 Sienna comes standard with a rearview camera.
Sienna rang her dad but got no answer so - remembering what her parents had taught her - called the emergency number.
The Sienna:Remix celebrates the large part that music plays in our lives, at all stages, said Toyota Engagement Marketing and Motorsports National Manager, Steve Appelbaum.
SIENNA software offers an end-to-end digital media infrastructure for news, sports and production featuring a tightly integrated MOS connection to ENPS.