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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 pre·cip·i·ta·tion /prɪˌsɪpəˈteʃən/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 pre·cip·i·ta·tion /prɪˌsɪpəˈteʃən/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 Pre·cip·i·ta·tion n.
 1. The act of precipitating, or the state of being precipitated, or thrown headlong.
 In peril of precipitation
 From off rock Tarpeian.   --Shak.
 2. A falling, flowing, or rushing downward with violence and rapidity.
    The hurry, precipitation, and rapid motion of the water, returning . . . towards the sea.   --Woodward.
 3. Great hurry; rash, tumultuous haste; impetuosity. “The precipitation of inexperience.”
 4. Chem. The act or process of precipitating from a solution.
 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.

From: WordNet (r) 2.0

      n 1: the quantity of water falling to earth at a specific place
           within a specified period of time; "the storm brought
           several inches of precipitation"
      2: the process of forming a chemical precipitate
      3: the falling to earth of any form of water (rain or snow or
         hail or sleet or mist) [syn: downfall]
      4: the act of casting down or falling headlong from a height
      5: an unexpected acceleration or hastening; "he is responsible
         for the precipitation of his own demise"
      6: overly eager speed (and possible carelessness); "he soon
         regretted his haste" [syn: haste, hastiness, hurry,