ormoluPronunciation: /ˈɔːməluː/Definition of ormolu noun [mass noun] a gold-coloured alloy of copper, zinc, and tin used in decoration and making ornaments: candlesticks in glass, bronze, and ormolu [as modifier]:an ormolu clockOrigin: mid 18th century: from French or moulu 'powdered gold' (used in gilding)ormolu in other Oxford dictionaries Definition of ormolu in the US English dictionary