An unstable atom produced in the process of radioactive decay.
Origin
Early 20th century; earliest use found in Ernest Rutherford (1871–1937), physicist. From Hellenistic Greek μεταβόλος changeable + -on.
metabolon2
/mɪˈtabəlɒn//mɛˈtabəlɒn/
Biochemistry
noun
An organized supramolecular complex of the enzymes that catalyse the sequential reactions of a particular metabolic pathway, bound to structural elements of a cell.