sienna
n. சீயெனா மண், சாயப்பொருள் தரும் காவிக் களி மண்வகை.
Si*en"na, n. Etym: [It. terra di Siena, fr. Siena in Italy.] (Chem.) Defn: 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. Burnt sienna, sienna made of a much redder color by the action of fire. -- Raw sienna, sienna in its natural state, of a transparent yellowish brown color.