An iron sheet building material, usually galvanised, which has been pressed into corrugations.

present participle of pump iron

(weightlifting, informal) The activity of weightlifting, especially for the purposes of bodybuilding.

(chemistry) The compound obtained by the reaction of oxygen on iron. Either iron(II) oxide (old term ferrous oxide, chemical formula FeO) or iron(III) oxide (old term ferric oxide, chemical formula Fe₂O₃). Generally known as rust when hydrated.

A branding iron which is not bent into the shape of the mark but rather requires the user to write the desired brand (and thus allows writing any brand).

A particular allotrope of iron.

A mixture of fine iron particles, unreacted iron oxide (ore), slag and charcoal residue.

(obsolete, chemistry) iron(II) sulfate

finely powdered iron, which ignites spontaneously in air

(historical) A falsely or neo-medieval torture device invented in the 18th century consisting of a chamber lined with spikes which closes upon and impales the victim inside.