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 It might be outdated or ideologically biased.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
References in periodicals archive ?
Small filial sponges connected to a larger one, in turn, appear to have incompletely formed aquiferous systems (Fig.
estimating the thickness of the aquiferous layers and the expected drilling depths 3.
Possibility of the water bearing units is also indicated by the sharp resistivity contrast between the aquiferous zones and the high apparent resistivity value of the crystalline/fresh basement, which are not aquiferous.
Clearance rates and aquiferous systems in two sponges with contrasting life-history strategies.
Aquiferous system and choanocyte chambers in Haliclona elegans (Porifera, Demospongiae).
It is noteworthy that many nurse cells burst (apoptosis?) in the excurrent aquiferous canals, releasing their cytoplasmic compounds and symbionts into the seawater.
The upper side collects quartz and silicates, which strengthens the collagenous structure; this is a dynamic process comprising incorporation of the particles and resizing of the quartz grains, with their elimination via the aquiferous system (Bavestrello et al., 1995).
At the same time, the underlying mesoderm begins to differentiate the aquiferous ring, which is extended under each fold to form five aquiferous tubes [ILLUSTRATION FOR FIGURES 9B AND D OMITTED].
Flow direction through the sponge's aquiferous system was recorded by releasing fluorescein dye into the water column near the sponge's "chimneys," or projecting siphons, or by injecting dye into the substratum close to the sponges.