Meaning of the word eiderdown in English

What does eiderdown mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

eiderdown

US /ˈaɪ.dɚ.daʊn/
UK /ˈaɪ.də.daʊn/

Noun

the soft, fine feathers from the breast of the female eider duck, used for stuffing quilts and pillows

Example:
The luxurious duvet was filled with pure eiderdown.
She snuggled under the warm eiderdown quilt.