The Collaborative International Dictionary
Swans-down
Swan's-down \Swan's"-down`\, or Swans-down \Swans"-down`\, n.
The down, or fine, soft feathers, of the swan, used on various articles of dress.
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A fine, soft, thick cloth of wool mixed with silk or cotton; a sort of twilled fustian, like moleskin.
Swan's-down cotton. See Cotton flannel, under Cotton.
Usage examples of "swans-down".
The sound of my voice fell on silence like a tired head on a swans-down pillow.