(countable, uncountable) The steel making up a steel casting, in the sense of one cast to finished (net) or near-net shape: the product of a steel foundry (as opposed to a steel mill); the steel counterpart to cast iron.

An alloy of iron and chromium that resists corrosion.

Made of stainless steel.

(Britain) A form of civil protection (using closed-circuit television, control zones and restricted access) that effectively seals off city centres and financial districts; used in Northern Ireland and the City.

Any of a range of alloys of iron and carbon whose properties depend on the proportion of carbon.

A high-grade steel, used in tools and dies, originally made by fusing wrought iron and charcoal in a crucible.

An alloy of iron and silicon that has important magnetic properties.

Alternative spelling of stainless steel

Fine strips or threads of steel, usually formed into pads or balls and used as an abrasive.

(poker, slang) The lowest straight flush, ace-2-3-4-5 (all of the same suit).