Etymology
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technetium (n.)

1947, coined in Modern Latin from Latinized form of Greek tekhnetos "artificial," from tekhnē "art, skill, craft" (see techno-) + metallic element ending -ium.

updated on September 10, 2022

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Definitions of technetium from WordNet

technetium (n.)
a crystalline metallic element not found in nature; occurs as one of the fission products of uranium;
Synonyms: Tc / atomic number "
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.