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

shape memory alloy

(chemistry, obsolete) Any metal, such as gold or silver, not readily oxidized by heat and air.

(obsolete) gold

The metal from which iron pots are made, different from common pig iron. / An alloy of copper with lead used for making large vessels for various purposes in the arts.

The fused material for making glass.

Muntz metal

Muntz metal / (UK, auctions) Gold (or some alloy of gold) that cannot be labelled as gold in the UK because it does not bear an Assay Office mark.

(chemistry, obsolete) Any of the four metals aluminum, gallium, indium and thallium of the boron group in the periodic table of elements.

An alloy of tin, copper, and mercury, sometimes formerly used for the bearings and packings of machinery.