cerium
/ˈsɪərɪəm/noun
mass noun
- the chemical element of atomic number 58, a silvery-white metal. It is the most abundant of the lanthanide elements and is the main component of the alloy misch metal. (Symbol: Ce)（化学元素）铈（符号： Ce）。
词源
early 19th cent.: named after the asteroid CERES, discovered shortly before.