1. the branch of geology and hydrology that studies the occurrence, movement, and properties of water in the Earth's crust and upper mantle, including groundwater and its interaction with rock and soil.
Usage: technical; scientific field

Examples

• Geohydrology is essential for understanding how contaminants spread through groundwater aquifers.
• The geohydrology of the region determines the availability of fresh water for agriculture.
• Engineers use geohydrology principles to design effective water management systems.
• Geohydrology research helps predict how climate change will affect underground water supplies.
• The company hired geohydrology experts to assess the site's suitability for a landfill.