Metal

Metal was the generic term for inorganic substances that were lustrous, malleable, ductile and generally good conductors of heat and electricity. Most elements were metals (copper, iron, gold) and mixtures containing one of them were known as alloys (steel).

Native to Skaro, the Magnedon was a lifeform with a body made out of a pliable metal held together by a magnetic field. (TV: The Daleks)

The Kiseibya were metal-eating creatures developed to be a Dalek predator. (AUDIO: Enemy of the Daleks)

Gallifreyan zinc was one of the strongest metals in the universe. (AUDIO: Pier Pressure)

Photavine steel was a metal used in Tritovore ships. When it heated up, it cooled down the interior of the ship. (TV: Planet of the Dead)