ir·​ri·​ga·​tion | \ ˌir-ə-ˈgā-shən How to pronounce irrigation (audio) \

Definition of irrigation

1 : the watering of land by artificial means to foster plant growth
2 : the therapeutic flushing of a body part with a stream of liquid

Examples of irrigation in a Sentence

Recent Examples on the Web Stage 2 restrictions limit sprinkler irrigation to one day a week, and only between 7 and 11 a.m. and 7 and 11 p.m. Calvin Finch, San Antonio Express-News, 10 June 2022 Install drip irrigation, which is a low-volume watering system. Los Angeles Times, 9 June 2022 An abundance of weeds like crabgrass or thatch, fungal growth like mushrooms, standing water or runoff after irrigation, yellowing and eventually dying patches of grass are all signs of overwatering. From Usa Today Network And Wire Reports, USA TODAY, 6 June 2022 Where soils are rich with sand and gravel, rain oozes deep underground, replacing water sucked out for irrigation, industry or home uses. John Flesher,, 26 Feb. 2022 Gradually wean the daphne off to its normal requirement to maintain evenly moist soil, perhaps a deep irrigation – about 15 inches deep – every two to three weeks. oregonlive, 20 Feb. 2022 Many homeowners are finding almost 80% of their drinking water goes to irrigation, laundry and toilets. Carter Evans, CBS News, 8 Dec. 2021 The majority of them aren’t generating electricity at all—they’re used for irrigation, water supply, flood control, or for fishing and boating. Matt Reynolds, Wired, 16 Nov. 2021 The canal led to irrigation, which transformed Murcia into one of Europe’s farming powerhouses, producing lettuce, broccoli, artichokes, melons, and more for export across the continent., 18 Oct. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'irrigation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of irrigation

1612, in the meaning defined at sense 2

Learn More About irrigation

Time Traveler for irrigation

Time Traveler

The first known use of irrigation was in 1612

See more words from the same year

Dictionary Entries Near irrigation




See More Nearby Entries 

Statistics for irrigation

Last Updated

19 Jun 2022

Cite this Entry

“Irrigation.” Dictionary, Merriam-Webster, Accessed 28 Jun. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for irrigation


ir·​ri·​ga·​tion | \ ˌir-ə-ˈgā-shən How to pronounce irrigation (audio) \

Kids Definition of irrigation

: an act or process of supplying with water or cleaning with a flow of liquid

More from Merriam-Webster on irrigation

Nglish: Translation of irrigation for Spanish Speakers

Britannica English: Translation of irrigation for Arabic Speakers Encyclopedia article about irrigation


Test Your Vocabulary

Odd Habits and Quirks

  • image1926873504
  • Which of the following best describes an easily irritated person?
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!