lawrencium

 
Pronunciation: /lɒˈrɛnsɪəm/

noun

[mass noun]
  • the chemical element of atomic number 103, a radioactive metal of the actinide series. Lawrencium does not occur naturally and was first made by bombarding californium with boron nuclei. (Symbol: Lr)

Origin:

1960s: modern Latin, named after the American physicist E. O. Lawrence (see Lawrence, Ernest Orlando), who founded the laboratory in which it was produced