[ see-en-uh ]
/ siˈɛn ə /


a ferruginous earth used as a yellowish-brown pigment (raw sienna) or, after roasting in a furnace, as a reddish-brown pigment (burnt sienna).
the color of such a pigment.

Nearby words

  1. siemens, sir william,
  2. siena,
  3. sienese,
  4. sienkiewicz,
  5. sienkiewicz, henryk,
  6. siepi,
  7. sierozem,
  8. sierra,
  9. sierra blanca peak,
  10. sierra leone

Origin of sienna

1750–60; < Italian (terra di) Sien(n)a (earth of) Siena Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sienna

British Dictionary definitions for sienna


/ (sɪˈɛnə) /


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)
the colour of this pigmentSee also burnt sienna

Word Origin for sienna

C18: from Italian terra di Siena earth of Siena

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for sienna


city in central Italy, probably from Senones, the name of a Gaulish people who settled there in ancient times. Related: Sienese. The brownish-ochre color (1760) is from Italian terra di Sienna "earth of Siena," where the coloring material first was produced.

Online Etymology Dictionary, © 2010 Douglas Harper