aquifer

noun

aqui·​fer ˈa-kwə-fər 

ˈä-

: a water-bearing stratum of permeable rock, sand, or gravel

aquiferous

a-ˈkwi-fə-rəs 

ä-

adjective

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Aquifer and Agriculture

The vast but relatively shallow Ogallala Aquifer lies beneath the Great Plains, under portions of eight states. Its thickness ranges from a few feet to more than a thousand feet. The Ogallala yields about 30 percent of the nation's groundwater used for irrigation in agriculture, and provides drinking water for most of the people within the area. But for many years more water has been extracted from the Ogallala than has been returned, and the situation today is of great concern.

Examples of aquifer in a Sentence

Recent Examples on the Web

Hobbs pointed out that some residents’ wells have gone dry as water levels have plummeted in the Ranegras Plain, and that the land has been sinking as the aquifer is depleted. —Ian James, Los Angeles Times, 13 Jan. 2026

Fushimi sits atop an aquifer containing over 20 billion tons of soft water that percolates to the surface at several natural springs. —Jessica Kozuka, Travel + Leisure, 12 Jan. 2026

In 2019, lawmakers approved a moratorium on new mines to protect the aquifer — and the streams and springs that flow from it — from drying up until further studies can be done. —Kayla Branch, The Frontier, 12 Jan. 2026

In a state bounded on three sides by seawater, where water courses through underground aquifers and some 50 inches of rain falls annually, a series of historic efforts to drain the Everglades have made modern Florida possible. —Amy Green, Miami Herald, 9 Jan. 2026

Word History

Etymology

borrowed from French aquifère "water-bearing," from aqui- (from Latin aqua "water" + -i- -i-) + -fère "bearing" — more at aqua, -fer

Note: The term was introduced into English by the geologist William Harmon Norton (1856-1944) in "Artesian Wells of Iowa," Iowa Geological Survey, vol. 6, Report on Lead, Zinc, Artesian Wells, etc. (Des Moines, 1897), p. 130: "The sand represents the permeable water-bearing layer, the aquifer, to revive a term of Arago's, and its outcrop between the basin rims the area of supply." "Arago" is the French physicist François Arago (1786-1853), whose essay "Sur les puits forés, connus sous le nom de puits artésiens, des fontaines artésiennes, ou de fontaines jaillissants" (Bureau des Longitudes, Annuaire pour l'an 1835 [Paris, 1834], pp. 181-258), is cited earlier in Norton's paper. As noted by Alfred Clebsch ("Analysis and Critique of 'Aquifers, Ground-Water Bodies, and Hydrophers' by C. V. Theis," Selected Contributions to Ground-Water Hydrology by C. V. Theis, and a Review of His Life and Work [U.S. Geological Survey Water-Supply Paper 2415] [Denver, 1994], pp. 39-43), Norton is not strictly speaking "reviving" anything used by Arago, who only uses aquifère as an adjective in the collocations nappe aquifère and couche aquifère (both meaning approximately "water-bearing layer"). Note that in an English translation of Arago's article ("On Springs, Artesian Wells, and Spouting Fountains," Edinburgh New Philosophical Journal, vol. 18, no. 36 [April, 1835]) there is no direct equivalent of aquifère, as couches aquifères is rendered by "water bearing beds" and nappe aquifère as simply "water."

First Known Use

1897, in the meaning defined above

Kids Definition

aquifer

noun

aqui·​fer ˈak-wə-fər 

ˈäk-

: a water-bearing layer of rock, sand, or gravel capable of absorbing water

aquiferous

a-ˈkwif-ə-rəs 

ä-

adjective