Dictionary.com
Thesaurus.com
Synonyms

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.

According to the NWS Probabilistic Precipitation Portal, the regions that could see more than a foot of snow stretch from Colorado to West Virginia to Boston.

From BBC • Jan. 23, 2026

Precipitation, to be clear, includes any variant – not just water, but snow or freezing rain and other forms of water falling from the sky.

From Salon • May 16, 2025

Precipitation has been slightly above average statewide so far this year.

From Los Angeles Times • Apr. 1, 2024

Precipitation is becoming more extreme as the planet heats.

From National Geographic • Feb. 14, 2024

I answer that, Precipitation is ascribed metaphorically to acts of the soul, by way of similitude to bodily movement.

From Summa Theologica, Part II-II (Secunda Secundae) Translated by Fathers of the English Dominican Province by Thomas, Aquinas, Saint