Any of various alloys of a silvery or light grey colour. Also: any of several metallic elements of a such a colour.

Any of various alloys valued for their hardness; esp. (more fully hard metal pewter) one of tin with a large quantity of copper or antimony. Now histo…

A set of alloys or minerals having the same chemical composition except for the relative proportions of two elements that can replace one another.

Metallurgy. An alloy containing two or more different allotropes of a metal.

an alloy capable of withstanding high temperatures, high stresses, and often highly oxidizing atmospheres.