iron oxide

== English == === Noun === iron oxide (countable and uncountable, plural iron oxides) (chemistry) Either of two compounds obtained by the reaction of oxygen on iron. Generally known as rust when hydrated. Synonym: E172 (when used as a food coloring) Hyponyms: iron(II) oxide; ferrous oxide; iron(III) oxide; ferric oxide; iron(II,III) oxide ==== Translations ====