1. plural of lithium: soft silvery-white metallic chemical elements with atomic number 3
Usage: chemistry; technical
2. plural of lithium: medications containing lithium compounds used to treat bipolar disorder
Usage: medical; informal

Examples

• The periodic table shows different isotopes of lithiums.
• Battery manufacturers use various lithiums in their products.
• The doctor prescribed different lithiums for the patient’s condition.
• Some lithiums are more effective than others for mood stabilization.
• The chemistry lab stored several lithiums in sealed containers.
• Patients often need time to adjust to new lithiums.