'Precipitation' definitions:

Definition of 'precipitation'

(from WordNet)
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) [syn: precipitation, downfall]
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" [syn: haste, hastiness, hurry, hurriedness, precipitation]

Definition of 'Precipitation'

From: GCIDE
  • Precipitation \Pre*cip`i*ta"tion\, n. [L. praecipitatio: cf. F. pr['e]cipitation.]
  • 1. The act of precipitating, or the state of being precipitated, or thrown headlong. [1913 Webster]
  • In peril of precipitation From off rock Tarpeian. --Shak. [1913 Webster]
  • 2. A falling, flowing, or rushing downward with violence and rapidity. [1913 Webster]
  • The hurry, precipitation, and rapid motion of the water, returning . . . towards the sea. --Woodward. [1913 Webster]
  • 3. Great hurry; rash, tumultuous haste; impetuosity. "The precipitation of inexperience." --Rambler. [1913 Webster]
  • 4. (Chem.) The act or process of precipitating from a solution. [1913 Webster]
  • 5. (Meteorology) A deposit on the earth of hail, mist, rain, sleet, or snow; also, the quantity of water deposited.
  • Note: Deposits of dew, fog, and frost are not regarded by the United States Weather Bureau as precipitation. Sleet and snow are melted, and the record of precipitation shows the depth of the horizontal layers of water in hundredths of an inch or in millimeters. [Webster 1913 Suppl.]