a type of dark yellow or red clay used for giving colour to paints, etc.; a dark yellow or red colour (富鐵)黃土,褐土(用作顔料) Burnt sienna, with its rich luminous red, makes an ideal colour for adding warmth to natural brick. 燃燒的錫耶納,以其豐富的明亮紅色,成爲給天然磚增加溫暖的理想顔色。
Word Originlate 18th cent.: from Italian (terra di) Sienna ‘(earth of) Siena’.