| 释义 | sienna
 si·en·naS0395200 (sē-ĕn′ə)n.1.  A special clay containing iron and manganese oxides, used as a pigment for oil and watercolor painting.2. a.  Raw sienna.b.  Burnt sienna.[Short for terra-sienna, from Italian terra di Sienna, earth of Siena, after Siena.]
 sienna(sɪˈɛnə) n1.  (Dyeing) 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.  (Colours) the colour of this pigment. See also burnt sienna[C18: from Italian terra di Siena earth of Siena]si•en•na(siˈɛn ə)
 n.    1.  an iron-bearing earth used as a yellowish brown pigment or, after roasting in a furnace, as a reddish brown pigment.    2.  the color of such a pigment.  [1750–60; < Italian (terra di) Sien(n)a (earth of) Siena] Thesaurus
 Translationsterra di Sienaterra di Siena bruciata| Noun | 1. | sienna - an earth color containing ferric oxides; used as a pigmentearth color - a colored mineral used as a pigmentburnt sienna - a reddish-brown pigment produced by roasting siennaraw sienna - a yellowish-brown pigment made from untreated sienna | 
 sienna
 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.siennaA naturally occurring pigment, chiefly oxides of iron; yellow-brown when mined. When calcined, a dark, rich color; then called burnt sienna.sienna1. 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 pigmentsienna
 Words related to siennanoun an earth color containing ferric oxidesRelated Wordsearth colorburnt siennaraw sienna
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