1. (noun) specially hardened steel plate used to protect fortifications or vehicles from enemy fire

• armor plate
• armour plate
• plate armor
• plate armour

1. (noun) specially hardened steel plate used to protect fortifications or vehicles from enemy fire

• aegis
• breastplate
• egis
• backplate
• beaver
• brassard
• cannon
• chamfron
• chanfron
• front-stall
• frontstall
• testiere
• cubitiere
• cuisse
• epauliere
• fauld
• gorget
• greave
• jambeau
• helmet
• knee piece
• nosepiece
• palette
• pallette
• roundel
• sabaton
• solleret
• skirt of tasses
• tasse
• tasset
• tuille
• visor
• vizor

1. (noun) specially hardened steel plate used to protect fortifications or vehicles from enemy fire

• plate
• scale
• shell