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| lith·i·um [ líthee əm ] |
noun |
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| Definition: |
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extremely light metallic element: a soft silver-white element that is the lightest metal known. Source: spodumene, lepidolite. Use: alloys, ceramics, batteries, in compounds as a medical treatment for bipolar disorder.
Symbol Li
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| [Early 19th century. <lithia] |
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