Protective armor of metal plates, especially as worn in medieval times by mounted knights.
- It was only after 1250 with the advent of plate armour that swords with truly sharp points began to appear.
- It is a myth that this plate armour was heavy and that it limited a man's mobility.
- Hearts of oak have become as obsolete as knights in plate armour, and the leviathan protectors of trade are themselves too vulnerable.
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Syllabification: plate ar·mor
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