The computational representation of a solvent as a continuous medium instead of individual explicit solvent molecules.
See also: Poisson–Boltzmann equation
Source:
PAC, 2016, 88, 239. 'Glossary of terms used in computational drug design, part II (IUPAC Recommendations 2015)' on page 244 (https://doi.org/10.1515/pac-2012-1204)