A variety of clay ironstone, in Staffordshire, England, used for making tools.

plural of poor metal

Any of various metallic elements in the p-block of the periodic table, generally with higher electronegativity, lower melting and boiling points and greater softness than the transition metals.

(informal) Resembling or characteristic of heavy metal music.

A fan of black metal music.

A fan of death metal.

A fan of thrash metal.

(archaeology) An age characterised by the use of tools made from a specific type of metal.

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

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