Involving the joint activity of two or more. Synonyms:concerted, conjunct, cooperative."The conjunct influence of fire and strong wind" , "The conjunctive focus of political opposition" , "A cooperative effort" , "A united effort" , "Joint military activities"
... reasons; Which may to you, perhaps, seem much unsinew'd, But yet to me they are strong. The queen his mother Lives almost by his looks; and for myself,— My virtue or my plague, be it either which,— She's so conjunctive to my life and soul, That, as the star moves not but in his sphere, I could not but by her. The other motive, Why to a public count I might not go, Is the great love the general gender bear him; Who, dipping all his faults ... — Hamlet, Prince of Denmark • William Shakespeare [Collins edition]
...Conjunctive Pronouns.—The pronouns who, which, what ( that which), that, and as (after such) are more than equivalents for nouns, inasmuch as they serve as connectives. They are often named relative pronouns because they relate to some antecedent either expressed or implied; they ... — Composition-Rhetoric • Stratton D. Brooks