Technetium
/tɛkˈni.ʃi.əm/ noun
noun ·Uncommon ·Advanced level
Definitions
Noun
- 1 A metallic chemical element (symbol Tc) with an atomic number of 43. uncountable
- 2 a crystalline metallic element not found in nature; occurs as one of the fission products of uranium wordnet
Synonyms
All synonymsExample
More examples"Technetium is rarely found in nature."
Etymology
From Ancient Greek τεχνητός (tekhnētós, “artificial, manmade”) + -ium, because it was the first manmade element synthesized.