aquifer

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aquifer

(ăk`wĭfər): see artesian wellartesian well,
deep drilled well through which water is forced upward under pressure. The water in an artesian well flows from an aquifer, which is a layer of very porous rock or sediment, usually sandstone, capable of holding and transmitting large quantities of water.
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; water supplywater supply,
process or activity by which water is provided for some use, e.g., to a home, factory, or business. The term may also refer to the supply of water provided in this way.
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Aquifer

Any underground water-bearing rock formation or group of formations that supplies groundwater, wells, or springs.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Aquifer

 

a stratum or several strata of water-permeable rock, whose pores, cracks, or other cavities are filled with groundwater. Several aquifers hydraulically connected to each other form an aquifer complex.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

aquifer

[′ak·wə·fər]
(geology)
A permeable body of rock capable of yielding quantities of groundwater to wells and springs.
(hydrology)
A subsurface zone that yields economically important amounts of water to wells.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

aquifer

A water-bearing formation of gravel, permeable rock, or sand that is capable of providing water, in usable quantities, to springs or wells.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

aquifer

a porous deposit of rock, such as a sandstone, containing water that can be used to supply wells
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005