steel

steel is a Noun

Definition:

[1] A variety of iron intermediate in composition and properties between wrought iron and cast iron (containing between one half of one per cent and one and a half per cent of carbon), and consisting of an alloy of iron with an iron carbide. Steel, unlike wrought iron, can be tempered, and retains magnetism. Its malleability decreases, and fusibility increases, with an increase in carbon.

[2] An instrument or implement made of steel; as: --

[3] A weapon, as a sword, dagger, etc. "Brave Macbeth . . . with his brandished steel." Shak. While doubting thus he stood, Received the steel bathed in his brother`s blood. Dryden.

[4] An instrument of steel (usually a round rod) for sharpening knives.

[5] A piece of steel for striking sparks from flint.

[6] Fig.: Anything of extreme hardness; that which is characterized by sternness or rigor. "Heads of steel." Johnson. "Manhood`s heart of steel." Byron.

[7] A chalybeate medicine. Dunglison.