|Origin:||Latin metallum 'mine, metal', from Greek metallon|
met‧al S2 W2 [uncountable and countable]
a hard, usually shiny substance such as iron, gold, or steel [↪ metallic]:
The gate is made of metal.
a small black metal box
They traded in gold and other precious metals (=valuable metals used especially for making jewellery).
The old trucks were sold as scrap metal (=old metal that is melted and used again).