Eider Definition

īdər
eiders
noun
eiders
Any of several large sea ducks (esp. genus Somateria) that live in northern regions of Europe, Asia, and North America.
Webster's New World
Webster's New World

Any of the species of the genera Polysticta or Somateria, in the seaduck subfamily Merginae, which line their nests with fine down (taken from their own bodies).

Wiktionary
Synonyms:
  • eider duck
pronoun

A river in Germany, the boundary between Schleswig and Holstein.

Wiktionary

Other Word Forms of Eider

Noun

Singular:
eider
Plural:
eiders

Origin of Eider

  • From Icelandic æðar, genitive of æðr, probably reaching English via Swedish eider (now ejder), from a North Germanic root.

    From Wiktionary

  • Back-formation from eiderdown

    From American Heritage Dictionary of the English Language, 5th Edition

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