curium

 
Pronunciation: /ˈkjʊərɪəm/

noun

[mass noun]
  • the chemical element of atomic number 96, a radioactive metal of the actinide series. Curium does not occur naturally and was first made by bombarding plutonium with helium ions. (Symbol: Cm)

Origin:

1940s: modern Latin, from the name of Marie and Pierre Curie