| 单词 | sienna |
| 释义 | Word Frequency sienna(sɪˈɛnə) noun 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 See also burnt sienna Word origin C18: from Italian terra di Siena earth of Siena |
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