connective
     adj : connecting or tending to connect; "connective remarks
           between chapters"; "connective tissue in animals";
           "conjunctive tissue in plants"
     n 1: an uninflected function word that serves to conjoin words or
          phrases or clauses or sentences [syn: {conjunction}, {conjunctive}]
     2: an instrumentality that connects; "he soldered the
        connection"; "he didn't have the right connector between
        the amplifier and the speakers" [syn: {connection}, {connexion},
         {connector}, {connecter}]
Source: WordNet® 2.0