In polymer terminology, polyelectrolyte composed of macromolecules containing basic groups on a substantial fraction of the constitutional units.
Note:
Most commonly, the basic groups are amino groups.
Source:
PAC, 2006, 78, 2067. 'Terminology of polymers containing ionizable or ionic groups and of polymers containing ions (IUPAC Recommendations 2006)' on page 2072 (https://doi.org/10.1351/pac200678112067)