1. technetium

noun. A crystalline metallic element not found in nature; occurs as one of the fission products of uranium.
Synonyms
atomic number 43 metal Tc metallic element
Antonyms
nonmetallic
Etymology
technetium (English)
-ium (English)
-um (Latin)
techno- (English)
τέχνη (Ancient Greek (to 1453))
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