音标：[pri'ventiv]
a. 预防的, 防止的
n. 防止物, 预防方法, 预防药
【医】 预防的, 预防剂
在线英汉词典

preventive的短语、例句：

preventive (also preventative ) adj (a) preventing or intendedto prevent sth; precautionary 预防（性）的; 防备的
preventive measures 预防性措施. (b) (of medicine) preventing or intended to prevent disease; prophylactic （医学上）预防疾病的, 预防性的
research into preventive medicine, ie ways of preventing disease 研究防治学. preventive (also preventative), n thing (esp a medicine) used or designed to prevent sth 预防物; 预防性措施; （尤指）预防药.