armour-plated

Concise Oxford English Dictionary © 2008 Oxford University Press:
armour /ˈɑːmə(r)/ (US armor)

▶noun

• 1 the metal coverings formerly worn by soldiers to protect the body in battle.

• 2 (also armour plate) the tough metal layer covering a military vehicle or ship.

  ■ military vehicles collectively.

• 3 the protective layer or shell of some animals and plants.

– derivatives
armoured adjective,
armour-plated adjective.

– origin ME: from OFr. armure, from L. armatura, from armare (see arm2).