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eiderdown

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noun ei·der·down \-ˌdau̇n\

Simple Definition of eiderdown

  • : soft feathers that come from ducks and that are used in warm clothing and bed covers

  • : a bed cover made with eiderdown

Source: Merriam-Webster's Learner's Dictionary

Full Definition of eiderdown

  1. 1 :  the down of the eider

  2. 2 :  a comforter filled with eiderdown

  3. 3 :  a soft lightweight clothing fabric knitted or woven and napped on one or both sides

Origin of eiderdown

probably from German Eiderdaune, from Icelandic æthardūnn, from æthur + dūnn 7down


First Known Use: 1774



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