1. A pump suited for sampling and pumping underground water supplies
   "The environmental team deployed a submersible groundwater pump to collect samples from the aquifer";
   - submersible groundwater pump

1. Underground water that is held in the soil and in pervious rocks
   "Many rural communities rely on ground water as their primary source of drinking water";
   - spring water, well water

1. Underground surface below which the ground is wholly saturated with water
   "spring rains had raised the groundwater level";
   - water table, water level

Derived forms: ground waters

Type of: formation, geological formation, H2O, pump, water

Encyclopedia: Ground water