English

Verb

radiolabel ‎(third-person singular simple present radiolabels, present participle radiolabeling or radiolabelling, simple past and past participle radiolabeled or radiolabelled)

1. To tag a substance (especially a biological substance) with a radioactive tracer

Noun

radiolabel ‎(plural radiolabels)

1. A radioactive tracer; a radiotracer