Lithium
Pronunciation
- IPA: /ˈlɪθiəm/
Origin
From New Latin lithium, from lithia (in reference to Ancient Greek λίθος (lithos, "stone")) + -ium.
Full definition of lithium
Noun
lithium
(countable and uncountable; plural lithiums)- (uncountable) The simplest alkali metal, the lightest solid element, and the third lightest chemical element (symbol Li) with an atomic number of 3.
- (pharmaceutical drug, uncountable) Lithium carbonate or other preparations of lithium metal used to treat manic depression and bipolar disorders.
- A lithium battery.