lithium
- Noun. (uncountable) The simplest alkali metal, the lightest solid element, and the third lightest chemical element (''symbol'' Li) with an atomic number of 3.
- Noun. (pharmaceutical drug, uncountable) Lithium carbonate or other preparations of lithium metal used to treat manic depression and bipolar disorders.
- Noun. A lithium battery.
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This entry was last updated on RefTopia from its source on 3/20/2012.