precipitation

noun

1.
the quantity of water falling to earth at a specific place within a specified period of time
Derived from:
precipitate
2.
the process of forming a chemical precipitate
Derived from:
precipitate
3.
the falling to earth of any form of water (rain or snow or hail or sleet or mist)
Derived from:
precipitate
4.
the act of casting down or falling headlong from a height
Derived from:
precipitate
5.
an unexpected acceleration or hastening
Derived from:
precipitate
6.
overly eager speed (and possible carelessness)