technetium

 
Pronunciation: /tɛkˈniːʃɪəm/

noun

[mass noun]
  • the chemical element of atomic number 43, a radioactive metal. Technetium was the first element to be created artificially, in 1937, by bombarding molybdenum with deuterons. (Symbol: Tc)

Origin:

1940s: modern Latin, from Greek tekhnētos 'artificial', from tekhnasthai 'make by art', from tekhnē 'art'