noun. A silvery metallic synthetic radioactive transuranic element, having isotopes with mass numbers ranging from 233 to 252. The most stable isotope (Cm-247) has a half-life of 15.6 million years. Atomic number 96; melting point 1,345°C; specific gravity (calculated) 13.51; valence 3, 4. cross-reference: Periodic Table.

noun. a radioactive transuranic element of atomic number 96, having an atomic weight of 247 for its most stable isotope (half-life 1.6 x 107 years). The chemical symbol is Cm.

noun. A transuranic chemical element (symbol Cm) with an atomic number of 96.

noun. a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei

"Small point: firefox auto-spell check prefers curium over curiam, though it is not attempting anything other than a dictionary search."

curie  curite  

curium bromide  curium chloride  curium dioxide  curium iodide  curium oxide  

metal  metallic element  

atomic number 96  cm