Definitions for magnetiteˈmæg nɪˌtaɪt
Random House Webster's College Dictionary
a common black mineral, ferrous and ferric iron oxide, FeFe2O4, that is the most magnetic mineral and an important iron ore.
Origin of magnetite:
< G Magnetit (1845); see magnet , -ite1
magnetite, magnetic iron-ore(noun)
an oxide of iron that is strongly attracted by magnets
A magnetic mineral, FeO, one of the primary ores of iron. It has also been called lodestone.
an oxide of iron (Fe3O4) occurring in isometric crystals, also massive, of a black color and metallic luster. It is readily attracted by a magnet and sometimes possesses polarity, being then called loadstone. It is an important iron ore. Called also magnetic iron