Magnetite

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The American Heritage® Dictionary of the English Language, 4th Edition
  • n. The mineral form of black iron oxide, Fe3O4, that often occurs with magnesium, zinc, and manganese and is an important ore of iron.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. A magnetic mineral, Fe3O4, one of the primary ores of iron. It has also been called lodestone.
  • the GNU version of the Collaborative International Dictionary of English
  • n. 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.
  • The Century Dictionary and Cyclopedia
  • n. Magnetic oxid of iron; a black oxid of iron (Fe3O4 or FeO.Fe2O3) which is strongly attractable by a magnet.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • n. an oxide of iron that is strongly attracted by magnets
  • Hypernym
    Words that are more generic or abstract
    iron ore   
    Variant
    Hyponym
    loadstone   
    Same Context
    Words that are found in similar contexts
    gemstone    acicular    malachite    silicium    hematite    pyrite    anthracite    diapson    uniaxial    pentane