‘鸭绒’ literally combines ‘鸭’ (yā), meaning ‘duck’, and ‘绒’ (róng), meaning ‘down’ or ‘soft downy feathers’. It refers specifically to the fine, fluffy underfeathers of ducks, prized for their excellent insulating properties. Unlike regular feathers, duck down has no quill shaft and forms clusters that trap air, making it lightweight yet highly warm — commonly used in high-quality winter jackets, sleeping bags, and comforters.

This term is technical but widely understood in everyday contexts related to clothing and home goods. It’s distinct from ‘鹅绒’ (é róng, goose down), which is generally more expensive and slightly warmer, and from synthetic alternatives like ‘化纤’ (huà xiān, polyester fiber). In Chinese, ‘鸭绒’ appears in product labels, shopping descriptions, and weather-related discussions about cold-weather gear.