Noun: eider I-du(r)
- Duck of the Northern Hemisphere much valued for the fine soft down of the females
"Eider down is prized for its insulating properties in cold climates"; "eider duck down is prized for its insulating properties in cold climates";
- eider duck
Derived forms: eiders
Type of: sea duck
Part of: genus Somateria, Somateria
Encyclopedia: Eider