copulative

名词 copulative:

1. an equating verb (such as `be' or `become') that links the subject with the complement of a sentence
   同义词：copula, linking verb

形容词 copulative:

1. syntactically connecting sentences or elements of a sentence
   同义词：connecting

cop.u.la.tive

adj.（形容词）
Grammar
【语法】
Serving to connect coordinate words or clauses:
连系词的：连接并列词或从句的：
例句：
a copulative conjunction.
连系连接动词

Serving as a copula:
系动词的：起系词作用的：
例句：
a copulative verb.
（连）系动词

Of or relating to copulation.
交媾的：交媾的或与之有关
n.Grammar （名词）【语法】
A copulative word or group of words.
并列连词：连接并列词或从句的词或词组

【引伸】
cop.ula.tively
adv.（副词）