precipitation

nouns

the quantity of water falling to earth at a specific place within a specified period of time
"the storm brought several inches of precipitation"
is derived from
is a type of (narrower)
an estimated quantity
the process of forming a chemical precipitate
is derived from
is a type of (narrower)
(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
the falling to earth of any form of water (rain or snow or hail or sleet or mist)
is derived from
the act of casting down or falling headlong from a height
is derived from
is derived from
is a type of (narrower)
a free and rapid descent by the force of gravity
"it was a miracle that he survived the drop from that height"
an unexpected acceleration or hastening
"he is responsible for the precipitation of his own demise"
is derived from
is derived from
is a type of (narrower)
an increase in rate of change
"modern science caused an acceleration of cultural change"
overly eager speed (and possible carelessness)
"he soon regretted his haste"