Definition of radiolabel in US English:

radiolabel

noun

Chemistry Medicine
  • A radioactive label.

verb

Chemistry Medicine
  • with object To label with a radioactive isotope, or a substance containing a radioactive isotope.

Origin

1950s; earliest use found in Journal of Agricultural and Food Chemistry. From radio- + label<br>1950s; earliest use found in Proceedings of the Royal Society of London. From radio- + label.

Pronunciation

radiolabel

/ˈreɪdɪəʊˌleɪbl/