Origin: Ironed; Ironing.
2. Resembling iron in colour; as, iron blackness.
Firm; robust; enduring; as, an iron constitution.
Inflexible; unrelenting; as, an iron will.
iron is often used in composition, denoting made of iron, relating to iron, of or with iron; producing iron, etc.; resembling iron, literally or figuratively, in some of its properties or characteristics; as, iron-shod, iron-sheathed, iron-fisted, iron-framed, iron-handed, iron-hearted, iron foundry or iron-foundry. Iron age.
Common pyrites, or pyrite. See pyrites. Iron sand, an iron ore in grains, usually the magnetic iron ore, formerly used to sand paper after writing. Iron scale, the thin film which on the surface of wrought iron in the process of forging. It consists essentially of the magnetic oxide of iron, Fe3O4