co·or·di·na·tive \(ˈ)kō|ȯ(r)d(ə)nəd.iv, -ətiv; -dənˌād.iv, -ātiv\adjective Etymology:coordination + -ive 1.of a conjunction: coordinating 2.: that coordinates < a coordinative mechanism > : having reference to coordination < coordinative duties > 3.linguistics: having two or more heads — used of an endocentric construction (as books and papers); opposed to subordinative