/ˈnæpi ||; ˈnæpɪ/noun [C] (plural nappies) (US 美 diaper) a piece of soft thick cloth or paper that a baby or very young child wears around its bottom and between its legs 尿布；尿片: Does his nappy need changing? 他的尿布是不是要换了？disposable nappies (= that you throw away when they have been used) 用后即弃的尿片