curium /ˈkjʊ.ɹi.əm/ noun2 •A radioactive and highly fissile, silver-grey, metallic, transuranic chemical element (symbol Cm) with an atomic number of 96, which is artificially produced in a particle accelerator.The modern figure for the half-life of curium-242 is 163 days—more than five months. — 1994 •An atom of this element.
