radiothorium

noun
ra·​dio·​tho·​ri·​um | \ ˌrā-dē-ō-ˈthȯr-ē-əm How to pronounce radiothorium (audio) \

Definition of radiothorium

: a radioactive isotope of thorium with the mass number 228

First Known Use of radiothorium

1905, in the meaning defined above

History and Etymology for radiothorium

New Latin

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More Definitions for radiothorium

radiothorium

noun
ra·​dio·​tho·​ri·​um | \ -ˈthōr-ē-əm, -ˈthȯr- How to pronounce radiothorium (audio) \

Medical Definition of radiothorium

: a radioactive isotope of thorium with the mass number 228