eider duck

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Definitions from WordNet

Noun eider duck has 1 sense

eider, eider duck - duck of the northern hemisphere much valued for the fine soft down of the females
--₁ is a kind of sea duck
--₁ is a member of Somateria, genus Somateria
--₁ has parts: eiderdown

Definitions from the Web

Eider Duck

Definition:

An eider duck is a large sea duck native to the northern hemisphere, characterized by its thick downy plumage.

Senses:

Sense 1:

Noun:

A species of duck (Somateria mollissima) known for its soft and valuable down feathers.

Example sentence: The eider duck's down was used to make luxurious pillows and comforters.

Sense 2:

Noun:

A female eider duck.

Example sentence: The eider duck was spotted with her offspring, swimming gracefully in the lake.

Sense 3:

Adjective:

Referring to or associated with an eider duck.

Example sentence: His collection consisted of eider duck feathers, seashells, and other coastal artifacts.