aquifer
/ˈækwɪfɝ/ · a·qui·fer
noun
- An underground layer of water‑bearing porous rock, sand, or gravel that stores and transmits groundwater. The town's municipal water supply is drawn from a deep aquifer beneath the hills.
Synonyms
groundwater reservoirwater‑bearing formationsubterranean water sourcewater‑bearing stratumhydrogeologic unitgroundwater sourceaquiferous layerunderground reservoir
Antonyms
Did you know? The word 'aquifer' was first recorded in English in 1665, appearing in a treatise on mining where it described water‑bearing strata that could flood tunnels.