Definitions of eiderdown
  1. noun
    down of the eider duck
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    type of:
    duck down
    down of the duck
  2. noun
    a soft quilt usually filled with the down of the eider
    synonyms: continental quilt, duvet
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    type of:
    comfort, comforter, puff, quilt
    bedding made of two layers of cloth filled with stuffing and stitched together
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