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swansdown

noun swans·down \ ˈswänz-ˌdau̇n \

Definition of swansdown

1 : the soft downy feathers of the swan often used as trimming on articles of dress

2 : a heavy cotton flannel that has a thick nap on the face and is made with sateen weave

First Known Use of swansdown

1606

in the meaning defined at sense 1

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