Asymmetric polymerization in which, starting from a mixture of enantiomeric monomer molecules, only one enantiomer is polymerized.
Source:
PAC, 2020, 92, 193. 'Nomenclature and terminology for linear lactic acid-based polymers (IUPAC Recommendations 2019)' on page 205 (https://doi.org/10.1515/pac-2017-1007)