Hildebrand parameter

https://doi.org/10.1351/goldbook.H02827
A parameter measuring the cohesion of a solvent (energy required to create a cavity in the solvent).
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1121 [Terms] [Paper]