copulative/ˈkɔpjulətɪv; ?@ -leɪtɪv; `kɑpjəˌletɪv/ adj(fml 文) having a connecting function 有连系作用的. n (grammar) word that connects (and implies that meanings are added together 系词; 连系词; 连词; 连接词) `And' is a copulative. and是连词.
牛津英汉双解词典