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precipitation

American  
[pri-sip-i-tey-shuhn] / prɪˌsɪp ɪˈteɪ ʃən /

noun

  1. the act of precipitating; state of being precipitated.

  2. a casting down or falling headlong.

  3. a hastening or hurrying in movement, procedure, or action.

  4. sudden haste.

  5. unwise or rash rapidity.

  6. Meteorology.

    1. falling products of condensation in the atmosphere, as rain, snow, or hail.

    2. the amount of rain, snow, hail, etc., that has fallen at a given place within a given period, usually expressed in inches or centimeters of water.

  7. Chemistry, Physics. the precipitating of a substance from a solution.


precipitation British  
/ prɪˌsɪpɪˈteɪʃən /

noun

  1. meteorol

    1. rain, snow, sleet, dew, etc, formed by condensation of water vapour in the atmosphere

    2. the deposition of these on the earth's surface

    3. the amount precipitated

  2. the production or formation of a chemical precipitate

  3. the act of precipitating or the state of being precipitated

  4. rash or undue haste

  5. spiritualism the appearance of a spirit in bodily form; materialization

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

precipitation Scientific  
/ prĭ-sĭp′ĭ-tāshən /
  1. A form of water, such as rain, snow, or sleet, that condenses from the atmosphere, becomes too heavy to remain suspended, and falls to the Earth's surface. Different atmospheric conditions are responsible for the different forms of precipitation.

  2. The process by which a substance is separated out of a solution as a solid. Precipitation occurs either by the action of gravity or through a chemical reaction that forms an insoluble compound out of two or more soluble compounds.


precipitation Cultural  
  1. In meteorology, the fall of water, ice, or snow deposited on the surface of the Earth from the atmosphere. In chemistry, a chemical reaction in a solution in which a solid material is formed and subsequently falls, as a precipitate, to the bottom of the container.


Other Word Forms

Etymology

Origin of precipitation

First recorded in 1425–75; late Middle English, from Latin praecipitātiōn-, stem of praecipitātiō “a casting down headlong,” equivalent to praecipitāt(us) “cast down headlong” (past participle of praecipitāre see precipitate) + -iō -ion

Explanation

Precipitation is rain, snow, sleet, or hail — any kind of weather condition where something's falling from the sky. Precipitation has to do with things falling down, and not just from the sky. It's also what happens in chemical reactions when a solid settles to the bottom of a solution. If you have hard water where you live, you might find lime deposits — a flaky white crust — on your faucets and showerhead. That's caused by precipitation of the minerals in the water. The minerals settle out — they precipitate — and clog the pipes.

Keep Reading on Vocabulary.com

Vocabulary lists containing precipitation

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"We analyzed a compilation of thermal history models in function of plate-tectonic models for the Tethys Ocean evolution, as well as deep-time precipitation and mantle-convection models."

From Science Daily • May 18, 2026

The first two brought huge and destructive amounts of precipitation to the Golden State.

From Los Angeles Times • May 14, 2026

Experts have long expected global warming to produce less frequent but more intense precipitation.

From Los Angeles Times • May 13, 2026

They also dipped 8.3% when there was precipitation and 4.9% when it was cloudy, compared with sunny days.

From The Wall Street Journal • Apr. 19, 2026

I put my life at hazard there, which some might account valor; but I knew it for the rashness of despair, the precipitation of utter despondence.

From "The Astonishing Life of Octavian Nothing, Traitor to the Nation, Volume II: The Kingdom on the Waves" by M.T. Anderson

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