precipitation
noun [ U ] uk/prɪˌsɪp.ɪˈteɪ.ʃən/ us/priːˌsɪp.əˈteɪ.ʃən/
(RAIN)
environment specialized（尤指雨或雪的）降落;降水
water that falls from the clouds towards the ground, especially as rain or snow
Hail and sleet are types of precipitation. 冰雹和冻雨都是降水形式。
The forecast is for dry, cloudy weather with no precipitation expected. 天气预报是干燥多云，没有降水。
(QUICK ACTION)
formal急躁，冲动
a way of behaving too quickly and without thinking
The prime minister has been accused of acting with precipitation over the crisis. 总理被指责在处理危机问题上贸然行动。
(IN CHEMISTRY)
chemistry specialized沉淀物，析出物质
a chemical process in which a solid substance is produced from a liquid
The compound is finally obtained by precipitation. 最终通过沉淀反应获得化合物。