Definition of ferrosoferric oxide
: a black magnetic iron oxide Fe3O4 found in nature as magnetite, also obtained synthetically (as from iron by heating in steam or from a ferrous salt and an alkali by precipitation and oxidation), and used chiefly as a pigment and polishing material —called also iron(II,III) oxide
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Origin and Etymology of ferrosoferric oxide
International Scientific Vocabulary ferroso- + ferric
First Known Use: 1825
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