Noun
solvolysis (countable and uncountable, plural solvolyses)
(chemistry) Any reaction, between a solute and its solvent, in which one or more bonds of the solute are broken; specifically a substitution, elimination or fragmentation reaction in which the solvent is the nucleophile.
In those cases where the solute is not recovered upon evaporation of the solvent, the process is referred to as solvolysis. Source: Internet
The thermodynamic concept of solubility does not apply straightforwardly to solvolysis. Source: Internet