Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A defensive covering, as of metal, wood, or leather, worn to protect the body against weapons.
  • n. A tough, protective covering, such as the bony scales covering certain animals or the metallic plates on tanks or warships.
  • n. A safeguard or protection: faith, the missionary's armor.
  • n. The combat arm that deploys armored vehicles, such as tanks.
  • n. The armored vehicles of an army.
  • transitive v. To cover with armor.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
  • n. A natural form of this kind of protection on an animal's body.
  • n. Metal plate, protecting a ship, military vehicle, or aircraft.
  • n. A tank, or other heavy mobile assault vehicle.
  • n. A military formation consisting primarily of tanks or other armoured fighting vehicles, collectively.
  • n. The naturally occurring surface of pebbles, rocks or boulders that line the bed of a waterway or beach and provide protection against erosion.
  • v. To equip something with armor or a protective coating or hardening.
  • v. To provide something with an analogous form of protection.

from the GNU version of the Collaborative International Dictionary of English

  • n. Defensive arms for the body; any clothing or covering worn to protect one's person in battle.
  • n. Steel or iron covering, whether of ships or forts, protecting them from the fire of artillery.

from The Century Dictionary and Cyclopedia

  • n. Defensive arms; any covering worn to protect the person against offensive weapons.
  • n. The metallic sheathing, intended as a protection against projectiles, for a ship of war or the exposed face of a fortification. Figuratively, a defensive covering of any kind; that which serves as a protection or safeguard; a bulwark: used in zoology and botany of the protective envelop or cover of an animal or a plant, as the scales of a fish or the plates of a crocodile.
  • n. In magnetism, same as armature
  • To cover with armor or armor-plate.
  • n. In paleobotany, the thick covering or jacket which surrounds the woody axis of fossil cycadean trunks, consisting of the persistent leaf-bases and the copious ramentum which fills the interstices between them.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. equip with armor
  • n. a military unit consisting of armored fighting vehicles
  • n. protective covering made of metal and used in combat
  • n. tough more-or-less rigid protective covering of an animal or plant

Etymologies

Middle English armure, from Old French armeure, from Latin armātūra, equipment; see armature.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English armo(u)r/armure, from Anglo-Norman armour(e)/armure, from Old French armëure, from Latin armātūra. (Wiktionary)

Examples

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