An alloy of iron and chromium used to make stainless steel and other strong, corrosion-resistant materials.
From 'ferro-' (Latin for iron) + 'chrome' (Greek 'chroma' meaning color). The term emerged in the late 19th century as metallurgists created iron-chromium alloys, naming them for the chromium's color-related properties and the iron base.
Ferrochrome is why your stainless steel sink doesn't rust—the chromium in this alloy creates an invisible protective oxide layer on the surface, a clever defense mechanism that humans copied from chemistry!
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