ra·​dio·​la·​bel ˌrā-dē-ō-ˈlā-bəl How to pronounce radiolabel (audio)
radiolabeled; radiolabeling; radiolabels

transitive verb

: to label with a radioactive atom or substance

Word History

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of radiolabel was in 1956

Dictionary Entries Near radiolabel

Cite this Entry

“Radiolabel.” Dictionary, Merriam-Webster, Accessed 23 Feb. 2024.

Medical Definition


transitive verb
ra·​dio·​la·​bel -ˈlā-bəl How to pronounce radiolabel (audio)
radiolabeled or radiolabelled; radiolabeling or radiolabelling
: to label with a radioactive atom or substance
radiolabeled monoclonal antibodies
radiolabel noun
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