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groundnut vine
groundout
grounds
Groundsel
groundsel bush
groundsel tree
groundsheet
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groundskeeper
groundsman
groundspeed
groundswell
groundwater level
groundwood
Groundwork
Group
group A
group AB
group action
group Amentiferae
group B
group captain
group Centrospermae
group discussion

groundwater definitions

Merriam Webster's

noun Date: circa 1889 water within the earth especially that supplies wells and springs

Britannica Concise

Water that occurs below the surface of the earth, where it occupies spaces in soils or geologic strata. Most groundwater comes from precipitation, which gradually percolates into the earth. Typically, 10-20% of precipitation eventually enters aquifers. Most groundwater is free of pathogenic organisms, and purification for domestic or industrial use is not necessary. Furthermore, groundwater supplies are not seriously affected by short droughts and are available in many areas that do not have dependable surface water supplies.

Oxford Reference Dictionary

n. water found in soil or in pores, crevices, etc., in rock.

Collin's Cobuild Dictionary

Groundwater is water that is found under the ground. Groundwater has usually passed down through the soil and become trapped by rocks.




 


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