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[ir-i-gey-shuh n] /ˌɪr ɪˈgeɪ ʃən/
the artificial application of water to land to assist in the production of crops.
Medicine/Medical. the flushing or washing out of anything with water or other liquid.
the state of being irrigated.
Origin of irrigation
First recorded in 1605-15, irrigation is from the Latin word irrigātiōn- (stem of irrigātiō). See irrigate, -ion
Related forms
irrigational, adjective
nonirrigation, noun
overirrigation, noun
preirrigation, noun
preirrigational, adjective
proirrigation, adjective
reirrigation, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for irrigation
Contemporary Examples
Historical Examples
  • There was water in it; it was part of their irrigation system.

    Two Thousand Miles Below Charles Willard Diffin
  • irrigation there's just a question of power—that's how he looks at it.

    The Great Hunger Johan Bojer
  • irrigation is the sole means of fertilizing, and it seems to be all the soil requires.

    Aztec Land Maturin M. Ballou
  • It will endure almost any amount of forcing, by liquid manures or irrigation.

    Cattle and Their Diseases Robert Jennings
  • The water for irrigation is costly, and should be made to go as far as possible.

    Agriculture for Beginners Charles William Burkett
Word Origin and History for irrigation

"a supplying of water to land," 1610s, from Latin irrigationem (nominative irrigatio) "a watering," noun of action from past participle stem of irrigare (see irrigate).

Online Etymology Dictionary, © 2010 Douglas Harper
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irrigation in Culture

irrigation definition

Artificial provision of water to sustain growing plants.

Note: Irrigation accounts for the greatest part of water usage in the western United States.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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