exonuclease

https://doi.org/10.1351/goldbook.09706
Enzyme that cleaves nucleotides from free ends of a linear nucleic acid molecule.
Source:
PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1146 (https://doi.org/10.1515/pac-2016-1120)