Any method of dating rocks, fossils, artefacts, etc., which depends on the measurement of the proportions of radioactive isotopes, e.g. radiocarbon and potassium–argon dating.
Origin
1960s.
Definition of radiodating in US English:
radiodating
noun
Any method of dating rocks, fossils, artefacts, etc., which depends on the measurement of the proportions of radioactive isotopes, e.g. radiocarbon and potassium–argon dating.