precipitation

Noun

the quantity of water falling to earth at a specific place within a specified period of time; "the storm brought several inches of precipitation"

Noun

the process of forming a chemical precipitate

Noun

the falling to earth of any form of water (rain or snow or hail or sleet or mist)

Noun

the act of casting down or falling headlong from a height

Noun

an unexpected acceleration or hastening; "he is responsible for the precipitation of his own demise"

Noun

overly eager speed (and possible carelessness); "he soon regretted his haste"