tech·​ne·​tium | \ tek-ˈnē-sh(ē-)əm How to pronounce technetium (audio) \

Definition of technetium

: a radioactive metallic element obtained especially from nuclear fuel as a product of uranium fission and used as a diagnostic radiopharmaceutical — see Chemical Elements Table

First Known Use of technetium

circa 1946, in the meaning defined above

History and Etymology for technetium

New Latin, from Greek technētos artificial, from technasthai to devise by art, from technē

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The first known use of technetium was circa 1946

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Cite this Entry

“Technetium.” The Dictionary, Merriam-Webster Inc., Accessed 7 December 2019.

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tech·​ne·​tium | \ tek-ˈnē-sh(ē-)əm How to pronounce technetium (audio) \

Medical Definition of technetium

: a metallic element that is obtained by bombarding molybdenum with deuterons or neutrons and in the fission of uranium and that is used in medicine in the preparation of radiopharmaceuticals symbol Tc — see pertechnetate Chemical Elements Table

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