Of or relating to, or using, a double metallic standard (as gold and silver) for a system of coins or currency.

Composed of two different metals; formed of two parts, each of a different metal; as, bimetallic wire; bimetallic thermometer, etc.

A term used to indicate that a barrel is composed of two (or more) metals, commonly used to refer to barrels which have a centrifugally cast lining.