The Collaborative International Dictionary of English v.0.48:

Connector \Con*nect"or\, n.
   One who, or that which, connects; as:
   (a) A flexible tube for connecting the ends of glass tubes in
       pneumatic experiments.
   (b) A device for holding two parts of an electrical conductor
       in contact.
       [1913 Webster]

WordNet (r) 3.0 (2006):

connector
    n 1: 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, connective]