preventative


preventative (http://definr.com/preventative)

     adj 1: tending to prevent or hinder [syn: preventive] [ant: permissive]
     2: preventing or contributing to the prevention of disease;
        "preventive medicine"; "vaccines are prophylactic"; "a
        prophylactic drug" [syn: preventive, prophylactic]
     n 1: remedy that prevents or slows the course of an illness or
          disease; "the doctor recommended several preventatives"
          [syn: preventive, prophylactic]
     2: any obstruction that impedes or is burdensome [syn: hindrance,
         hitch, preventive, encumbrance, incumbrance, interference]
     3: an agent or device intended to prevent conception [syn: contraceptive,
         preventive, contraceptive device, {prophylactic
        device}, birth control device]