swansdownPronunciation: /ˈswɒnzdaʊn/Definition of swansdown noun [mass noun] 1the fine down of a swan, used for trimmings and powder puffs. 2a thick cotton fabric with a soft nap on one side. a soft, thick fabric made from wool mixed with a little silk or cotton. swansdown in other Oxford dictionaries Definition of swansdown in the US English dictionary
