Iron-oxide definitions

Any of various oxides of iron, such as ferric oxide or ferrous oxide.
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Any oxide of iron, esp. ferric oxide or ferrous oxide.
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Any of various oxides of iron, such as ferric oxide or ferrous oxide.
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The material used to coat the surfaces of magnetic tapes and lower-capacity disks.
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(chemistry) The compound obtained by the reaction of oxygen on iron. Either iron(II) oxide (old term ferrous oxide, chemical formula FeO) or iron(III) oxide (old term ferric oxide, chemical formula Fe2O3). Generally known as rust when hydrated.
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