definition of
precipitation

[1] #1 precipitation n. the quantity of water falling to earth at a specific place within a specified period of time; "the storm brought several inches of precipitation". wn

[2] #2 precipitation n. the process of forming a chemical precipitate. wn

[3] #3 precipitation n. [downfall] the falling to earth of any form of water (rain or snow or hail or sleet or mist). wn

[4] #4 precipitation n. the act of casting down or falling headlong from a height. wn

[5] #5 precipitation n. an unexpected acceleration or hastening; "he is responsible for the precipitation of his own demise". wn