groundwater
From Glossary of Meteorology
(Also called phreatic water.) Subsurface water that occupies the zone of saturation; thus, only the water below the water table, as distinguished from interflow and soil moisture.
(Also called phreatic water.) Subsurface water that occupies the zone of saturation; thus, only the water below the water table, as distinguished from interflow and soil moisture.
Water in the lithosphere, that is, below the ground surface.