- (element) The simplest alkali metal, the lightest solid element, and the third lightest chemical element (symbol Li) with an atomic number of 3.
- (pharmaceutical drug) lithium carbonate, Lithium carbonate or other preparations of lithium metal used to treat manic depression and bipolar disorders.
Etymology: From (term, tr=lithos, , , stone, lang=el).
- French: lithium
- German: Lithium
- Italian: litio
- Spanish: litio
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