Eider

//ˈaɪdɚ// name, noun

name, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any of the species of Somateria spp. and Polysticta stelleri or of the seaduck subfamily Merginae, which line their nests with fine down (taken from their own bodies).
  2. 2
    duck of the Northern Hemisphere much valued for the fine soft down of the females wordnet
Proper Noun
  1. 1
    A river in Germany, the boundary between Schleswig and Holstein.

Synonyms

All synonyms
eider duckeiderduck

Example

More examples

"An area near the Tutakoke River is a nesting ground for Brant Geese and Eider ducks, two of the 27 species being tested throughout the state."

Etymology

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

Related phrases

Steller's eidercommon eidereider gooseking eiderspectacled eider

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.