equivalent hydrodynamic radius

https://doi.org/10.1351/goldbook.12258
Radius of the hydrodynamically equivalent sphere.
Source:
PAC, 2015, 87, 71. (Definitions of terms relating to individual macromolecules, macromolecular assemblies, polymer solutions, and amorphous bulk polymers (IUPAC Recommendations 2014)) on page 103 [Terms] [Paper]