noun Date: 1955 a mutant gene, individual, or strain that regains a former capability (as the production of a particular protein) by undergoing further mutation , ~ adjective
REVERTANT
Meaning of REVERTANT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012