precipitant
/prɪˈsɪpɪtənt/noun
1- a cause of a particular action or event起因：
the immediate precipitants of the conflict were a succession of undisciplined actions.
一系列无纪律行为是冲突的直接起因。
1.1
- chiefly Psychology a cause or stimulus which precipitates a particular condition【主心理】病因：
depression may be a precipitant in many cases.
抑郁可能是许多疾病的诱因。
1.2
- Chemistry a substance that causes the precipitation of a specified substance【化】沉淀剂：
a protein precipitant.
蛋白沉淀剂。
派生词
precipitance
noun词源
early 17th cent.: from obsolete French précipitant 'precipitating'， present participle of précipiter.