Solubility
"The amount of mass of a compound that will dissolve in a unit volume of solution. Aqueous Solubility is the maximum concentration of a chemical that will dissolve in pure water at a reference temperature." (U.S. Federal Remediation Technologies Roundtable, 2013)
Sources
U.S. Federal Remediation Technologies Roundtable. FRTR Glossary. 2013. Link: https://frtr.gov/glossary/aterms.htm