precipitate
v
1 [Tn] (fml 文) cause (sth) to happen suddenly or soon(er); hasten 使（某事物）突然或迅速地发生; 加速
events that precipitated his ruin 突然毁了他的事件
One small error precipitated the disaster. 一个小小的错误酿成这一灾难.
2 [Tn, Tn.pr]
(fml 文)
(a) throw (sb/sth) with force (as if) from a great height （似）自极高处将（某人[某物]）猛然扔下; 猛摔（某人[某物]）.
(b) ~ sb/sth into sth (fig 比喻) throw sb/sth suddenly (into a state or condition) 使某人[某事物]突然陷入（某种状况）
The assassination of the ambassador precipitated the country into war. 由於大使遇刺, 该国顿时进入了战争状态.
3 (chemistry 化)
(a) [I] (of a substance) separate into solid form from the liquid in which it is held （指物质）沉淀, 淀析.
(b) [Tn] cause (a substance) to do this 使（物质）沉淀; 析出（某种物质）.
4 [I, Ipr, Tn, Tn.pr esp passive 尤用於被动语态]
~ (sth) (as sth) (cause vapour to) condense and form rain, snow etc （使水气）冷凝成为雨、 雪等
The clouds precipitate/are precipitatedas snow in winter. 在冬天云冷凝成为雪. precipitate, n [C, U]
(a) solid matter that has been precipitated (precipitate 3b) from a solution 沉淀物; （液体的）析出物; 冷凝物.
(b) moisture condensed from vapour and deposited (as rain, dew, etc) （水气的）凝结物（如雨、 露等）.
precipitate adj
(a) violently hurried 急促的; 迅猛的
a precipitate dash 猛冲.
(b) (of an action) done without care or thought; rash2 （指行动）鲁莽的, 未经考虑的, 仓促的
his precipitate action in selling the property 他变卖财产的草率行为.
(c) (of a person) acting without care or thought; impulsive （指人）鲁莽的, 仓促行事的, 感情用事的.