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/ˈækwɪfə/ · noun
An underground layer of water-bearing porous stone, earth, or gravel..
The water in the well came from an aquifer.
An aquifer is rock or sediment that holds groundwater – rain that is held below the surface of the soil and collected in empty spaces underground. Aquifers feed rivers to keep their flows at a healthy level, and are also important sources of water when reservoirs or other sources run low.
Use aquifer when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Aquifer means An underground layer of water-bearing porous stone, earth, or gravel..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
The water in the well came from an aquifer.
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