Word Study
lithia
CIDE DICTIONARY
lithia, n. [NL., from Gr. li`qos stone.].
The oxide of lithium; a strong alkaline caustic similar to potash and soda, but weaker. See Lithium. [1913 Webster]
OXFORD DICTIONARY
lithia, n. lithium oxide.
Idiom
lithia water water containing lithium salts and used against gout.
Etymology
mod.L, alt. of earlier lithion f. Gk neut. of litheios f. lithos stone, after soda etc.
For further exploring for "lithia" in Webster Dictionary Online