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ground·wa·teralso ground water (ground′wô′tər, -wŏt′ər)
Water beneath the earth's surface, often between saturated soil and rock, that supplies wells and springs.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Physical Geography) underground water that has come mainly from the seepage of surface water and is held in pervious rocks
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
or ground′ wa`ter,
the water beneath the surface of the ground, the source of spring and well water.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Water that flows or collects beneath the Earth's surface. Groundwater originates from rain and from melting snow and ice. It sinks into the ground, filling the small empty spaces in soil, sediment, and porous rocks. Aquifers, springs, and wells are supplied by the flow of groundwater.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
Collins English/French Electronic Resource. © HarperCollins Publishers 2005