lithium

lithium
[ˈlɪθɪəm]
noun
  1. [mass noun]the chemical element of atomic number 3, a soft silver-white metal. It is the lightest of the alkali metals(Symbol: Li)
    (化学元素)锂(符号:Li)
    ■lithium carbonate or another lithium salt, used as a mood-stabilizing drug
    碳酸锂,锂盐
  2. Lithium occurs widely as a minor component of silicate rocks, and in some rare minerals. The metal and its compounds are used in alloys, lubricating greases, chemical reagents, batteries, and other products
语源
  1. early 19th cent.: from lithia + -ium
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