The age characterised by the use of metal tools. / The Copper Age.

shape memory alloy

A music genre that fuses vocal and instrumental elements of hip-hop with heavy metal.

A tough kind of sheet brass from which cartridge shells are made.

Pertaining to a cooperative arrangement between airlines in which partners jointly plan and manage capacity, pricing, and inter-airline financial settlement, so that all participating airlines share equally in the profits.

An alloy consisting of four and a half ounces of zinc per pound of copper.

A mixture of around two-thirds copper and one-third tin making a white brittle alloy that can be polished into a highly reflective surface.

An alloy of lead, antimony, and mercury, made for sheathing ships.

Muntz metal

Prince Rupert's metal