magnetite

2 definitions found

magnetite - Collaborative International Dictionary of English v.0.48 :

  Magnetite \Mag"net*ite\, n. (Min.)
     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.
     [1913 Webster]

magnetite - WordNet (r) 2.1 (2005) :

  magnetite
      n 1: an oxide of iron that is strongly attracted by magnets
           [syn: magnetite, magnetic iron-ore]