Is “Lithium” a Scrabble word?
Yes
LITHIUM
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Lithium
/ˈlɪθi.əm/
noun
1.The simplest alkali metal, the lightest solid element, and the third lightest chemical element (symbol Li) with an atomic number of 3. It is a soft, silvery metal.
2.A single atom of this element.
3.Lithium carbonate or other preparations of lithium metal used to treat manic depression and bipolar disorders.