precipitation -- (the quantity of water falling to earth at a specific place within a specified period of time; "the storm brought several inches of precipitation")
precipitation -- (the process of forming a chemical precipitate)
precipitation, downfall -- (the falling to earth of any form of water (rain or snow or hail or sleet or mist))
precipitation -- (the act of casting down or falling headlong from a height)
precipitation -- (an unexpected acceleration or hastening; "he is responsible for the precipitation of his own demise")
haste, hastiness, hurry, hurriedness, precipitation -- (overly eager speed (and possible carelessness); "he soon regretted his haste")
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