swansdown
Concise Oxford English Dictionary © 2008 Oxford University Press:
swansdown/ˈswɒnzdaʊn/
▶noun
- 1 the fine down of a swan, used for trimmings and powder puffs.
- 2 a thick cotton fabric with a soft nap on one side.
■ a soft, thick woollen fabric containing a little silk or cotton.
'swansdown' also found in these Oxford entries:

