preventative/prɪˈvɛntətɪv/1预防性的remedy that prevents or slows the course of an illness or diseaseCopy同义词： preventiveprophylactic2避孕药, 预防性的an agent or device intended to prevent conceptionCopy同义词： preventivecontraceptive deviceprophylactic devicecontraceptivebirth control device3障碍，阻碍any obstruction that impedes or is burdensomeCopy同义词： hitchinterferencepreventivehinderanceencumbrancehindranceincumbrance