An alloy of copper and nickel that is strong, corrosion-resistant, and commonly used in coins, ship hulls, and electrical equipment.
From Latin 'cuprum' (copper) combined with 'nickel' (from Swedish kupfernickel, literally 'copper demon'). Developed as an alloy in the 19th century.
Cupronickel is the secret to why modern coins don't turn your pocket green—the nickel prevents the copper from oxidizing, and this same alloy protects submarine hulls from the corrosive ocean.
Complete word intelligence in one call. Free tier — 50 lookups/day.