Magnesia | Dictionary of Greek and Roman Geography

Magnesia
Magnēsia, ae, f., = Μαγνησία, I a geographical proper name . A A country in Thessaly, on the Aegea...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
Magnesia
·noun A light earthy white substance, consisting of magnesium oxide, and obtained by heating magnesi...

Webster's Dictionary of the English Language