ground water

or ground·wa·ter

  1. the water beneath the surface of the ground, consisting largely of surface water that has seeped down: the source of water in springs and wells.

Origin of ground water

First recorded in 1885–90 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for groundwater

Contemporary Examples of groundwater

British Dictionary definitions for groundwater

ground water

  1. underground water that has come mainly from the seepage of surface water and is held in pervious rocks
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for groundwater

"water in the ground," also ground water, 1890, from ground (n.) + water (n.). Attested from mid-15c. in sense "water at the bottom of a stream."

Online Etymology Dictionary, © 2010 Douglas Harper

groundwater in Science


  1. Water that collects or flows beneath the Earth's surface, filling the porous spaces in soil, sediment, and rocks. Groundwater originates from rain and from melting snow and ice and is the source of water for aquifers, springs, and wells. The upper surface of groundwater is the water table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

groundwater in Culture


Water that seeps through the soil or rocks underground.


Groundwater is a source of drinking and spring water for many communities.


Groundwater can be contaminated by chemical pollutants. (See water pollution.)
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.