vitiate

美 [ˈvɪʃiˌeɪt]
英 [ˈvɪʃieɪt]
  • v.使失效;削弱效用
  • 网络损害;使腐败;使污浊
第三人称单数:vitiates  现在分词:vitiating  过去式:vitiated  
vitiate
v.
1.
[usupass]
~ sth
使失效;削弱效用to spoil or reduce the effect of sth