precipitation
- n. [化学] 沉淀，[化学] 沉淀物；冰雹；坠落；鲁莽
英英释意
- 1. the quantity of water falling to earth at a specific place within a specified period of time;
- "the storm brought several inches of precipitation"
- 2. the process of forming a chemical precipitate
- 3. the falling to earth of any form of water (rain or snow or hail or sleet or mist)
- 4. the act of casting down or falling headlong from a height
- 5. an unexpected acceleration or hastening;
- "he is responsible for the precipitation of his own demise"
- 6. overly eager speed (and possible carelessness);
- "he soon regretted his haste"