Source : WordNet®

leechlike
     adj : of plants or persons; having the nature or habits of a
           parasite or leech; living off another; "a wealthy class
           parasitic upon the labor of the masses"; "parasitic
           vines that strangle the trees"; "bloodsucking
           blackmailer"; "his indolent leechlike existence" [syn:
           {parasitic}, {parasitical}, {bloodsucking}]