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precipitation

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

noun

  • precipitations
    plural
  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

Derived Forms

Inflected Forms

Nouns

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.

See Examples For:

Heavy precipitation is also expected to fall in Shanghai and parts of Fujian, Anhui and Jiangsu provinces through Monday afternoon, it said.

From Barron's Aug. 9, 2026

This should bring a greater chance of rain, showers and thunderstorms, even to southern regions, with precipitation amounts closer to normal.

From BBC Aug. 7, 2026

At greater heights, droplet collisions, precipitation formation, and faster updrafts can reduce the total surface area of droplets, allowing supersaturation to build.

From Science Daily Aug. 1, 2026

Most are in northern Ontario and Quebec, where it has been hot and dry, as well as the Northwest Territories, which is experiencing a drought and received less than 40% of normal precipitation in June.

From The Wall Street Journal Jul. 17, 2026

The annual precipitation in this land where the rains seldom fall is not enough to support good sod-forming grass; it favors rather the perennial bunch- grass that grows in the shelter of the sage.

From "Silent Spring" by Rachel Carson

It looked at both extreme events and low-onset climate change, including coastal erosion, marine flooding, sea-level rise and extremes, soil and groundwater salinization, inland flooding resulting from heavy precipitations, and permafrost thaw.

From Science Daily Oct. 19, 2023

They obtained a ton of pitchblende from the Austrian Government, began a long series of crushings, pulverizations, leachings, precipitations, crystallizations with apparatus at which a modern physicist would sneer.

From Time Magazine Archive

These snows are, in fact, precipitations of vapor, condensed by the cold, and carried with it successively.

From The Certainty of a Future Life in Mars by L. P. Gratacap

Evaporation of the solvent is avoided, and in consequence a freedom from vexatious precipitations is secured, and more uniform and reliable results are obtained.

From Scientific American Supplement, No. 417, December 29, 1883 by Various

Extra-mundane smoke and smoke from cities merge, or both would manifest in black precipitations in rain.

From The Book of the Damned by Charles Fort

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