calculated molar refractivity

initialism: CMR
https://doi.org/10.1351/goldbook.11418

The calculated molar refractivity of a molecule or substituent used as a measure of size and polarizability in 2D-QSAR.

Source:
PAC, 2016, 88, 239. (Glossary of terms used in computational drug design, part II (IUPAC Recommendations 2015)) on page 242 [Terms] [Paper]