1. The chemical element with atomic number 26, a hard silvery-gray metal that is essential to life and widely used in industry and construction.
Usage: Also called iron; ferrum is the Latin name, used in chemistry and scientific contexts.; Symbol: Fe

Examples

• Ferrum is one of the most abundant elements in Earth's crust.
• The periodic table lists ferrum with the symbol Fe.
• Iron supplements contain ferrum to help treat anemia.
• Steel is an alloy made primarily of ferrum and carbon.
• Ferrum oxidizes when exposed to moisture and oxygen, forming rust.