daughter product

in radiochemistry
https://doi.org/10.1351/goldbook.D01525
Any nuclide which follows a specified radionuclide in a decay chain.
Source:
PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2517 (https://doi.org/10.1351/pac199466122513)