precipitation

noun

pre·​cip·​i·​ta·​tion pri-ˌsi-pə-ˈtā-shən How to pronounce precipitation (audio)
Synonyms of precipitationnext
1
: the quality or state of being precipitate : hastiness
2
: an act, process, or instance of precipitating
especially : the process of forming a precipitate
3
: something precipitated: such as
a
: a deposit on the earth of hail, mist, rain, sleet, or snow
also : the quantity of water deposited

Examples of precipitation in a Sentence

The weather forecast calls for some sort of frozen precipitation tomorrow—either snow or sleet. a 50 percent chance of precipitation Minerals are separated from the seawater by precipitation.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Emily Hunt, Thornton’s interim infrastructure director, says the concern lies not so much with the summer ahead but with the summers to follow, assuming precipitation stays meager. John Aguilar, Denver Post, 15 Mar. 2026 There’s a 90% chance of precipitation, with the forecast calling for as much as a half-inch of rainfall before commuters hit the road Monday morning, and wind gusts reaching nearly 25 mph. John Romero, Baltimore Sun, 15 Mar. 2026 Models show a high-pressure ridge descending over the West, bringing high heat and low precipitation across the region, meteorologist Jacob Spender told The Sacramento Bee. Don Sweeney, Sacbee.com, 15 Mar. 2026 After the strongest storms move out, colder air will settle in with the possibility of a few wet snowflakes before the precipitation tapers off. Gregory Padgett, CBS News, 14 Mar. 2026 See All Example Sentences for precipitation

Word History

First Known Use

1502, in the meaning defined at sense 1

Time Traveler
The first known use of precipitation was in 1502

Cite this Entry

“Precipitation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/precipitation. Accessed 17 Mar. 2026.

Kids Definition

precipitation

noun
pre·​cip·​i·​ta·​tion pri-ˌsip-ə-ˈtā-shən How to pronounce precipitation (audio)
1
: unwise haste
2
: the process of precipitating or of forming a precipitate
3
: water or the amount of water that falls to the earth as hail, mist, rain, sleet, or snow

Medical Definition

precipitation

noun
pre·​cip·​i·​ta·​tion pri-ˌsip-ə-ˈtā-shən How to pronounce precipitation (audio)
1
a
: the process of forming a precipitate from a solution
b
: the process of precipitating or removing solid or liquid particles from a smoke or gas by electrical means
2

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