Definition of ferrous oxide in US English:

ferrous oxide


  • A black powder, FeO, used in making steel and glass.

    • ‘All fertilizer salts react the same way, whether they're potassium chloride, ammonium nitrate (NH.sub.4] NO.sub.3] or ferrous oxide (FeO).’
    • ‘During that period of time, moisture was continually trying to convert them to ferrous oxide.’
    • ‘The other thing I've done today is register myself as an organisation in order to get me a catalogue for buying ammonium ferrous oxide crystals.’