eider
nounUK /ˈaɪdə/ · US /ˈaɪdɚ/
Etymology From Icelandic æðar, genitive of æðr, probably reaching English via Swedish eider (now ejder), from a North Germanic root.
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).
- Derived terms
- common eider, eiderdown, eider goose, king eider, spectacled eider, Steller's eider