Sigma (couch)

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For other uses, see sigma (disambiguation).

The Ancient Roman furniture, sigma was a semi-circular couch sometimes used at banquets instead of the triclinium.[1] Its name comes from the lunate sigma (upper case C, lower case ϲ) — which resembles, but which is not at all related to, the Latin letter C and was used in Eastern forms of Greek writing and in the Middle Ages.


  1. ^ The Roman banquet: images of conviviality, Katherine Dunbabin, 2003, p. 166