- down, or soft feathers, from the breast of the female eider duck.
- a heavy quilt or comforter, especially one filled with eiderdown.
- a warm, lightweight knitted or woven fabric of wool, cotton, or man-made fibers, napped on one or both sides, used for sleepwear, infants' clothing, etc.
- the breast down of the female eider duck, with which it lines the nest, used for stuffing pillows, quilts, etc
- a thick warm cover for a bed, made of two layers of material enclosing a soft filling
- a warm cotton fabric having a woollen nap
