swansdown

from The Collaborative International Dictionary of English v.0.48
Swan's-down \Swan's"-down`\, or Swans-down \Swans"-down`\, n.
   1. The down, or fine, soft feathers, of the swan, used on
      various articles of dress.
      [1913 Webster]

   2. A fine, soft, thick cloth of wool mixed with silk or
      cotton; a sort of twilled fustian, like moleskin.
      [1913 Webster]

   {Swan's-down cotton}. See {Cotton flannel}, under {Cotton}.
      [1913 Webster]
    
from Moby Thesaurus II by Grady Ward, 1.0
33 Moby Thesaurus words for "swansdown":
      blubber, breeze, butter, clay, cushion, dough, down, eiderdown,
      feather bed, feathers, fleece, floss, flue, fluff, foam, fur, fuzz,
      kapok, lint, pile, pillow, plush, pudding, puff, putty, rubber,
      satin, silk, thistledown, velvet, wax, wool, zephyr

    

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