Home › Words › H › hydrogeochemistryhydrogeochemistryhydrogeochemistry · noun — the chemistry of ground and surface waters, particularly the relationship between the chemical characteristics and quality of waters and the areal and regional geology.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom hydro- + geochemistry.nounThe chemistry of ground and surface waters, particularly the relationship between the chemical characteristics and quality of waters and the areal and regional geology.Definitions & examples from Wiktionary (CC BY-SA 3.0).