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Lithium (from Ancient Greek: λίθος, líthos, 'stone') is a chemical element; it has symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the least dense metal …

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li in American English (li) noun (in Chinese ethical philosophy) the etiquette traditionally prescribed for individuals or groups of people in a given situation

The meaning of LI is lithium.

LI commonly refers to Lithium, a chemical element with the symbol Li and atomic number 3, known for its use in rechargeable batteries and mood-stabilizing medications.