definition/͵dɛfəˋnIʃən; ˌdefəˈnIʃ$n or ˌdefIˈnIʃ$n/n [C] 1 a phrase or sentence that says what a word means 定义﹐释义: +of There are many definitions of the word ‘feminism’. “女权主义”一词有许多定义。2 by definition having a particular quality because all things or people of the same type have it 按照释义﹔本质上: Children are, by definition, immature. 儿童在本质上是不成熟的。