Electrical conductivity

"Ability of water to conduct an electrical current, expressed as the electrical current per unit area divided by the voltage drop per unit length" (United Nations Publications, 2013) 

Sources

United Nations Publications. "Glossary of Shared Water Resources (English-Arabic): Technical, Socioeconomic and Legal Terminology." (2013). DOI:https://dx.doi.org/10.18356/70b462ce-en