ironclad

  1. Adjective.  Covered with iron, steel, or some metal, armor-plated.
  2. Adjective.  (figuratively) Solid or certain; not able to be disputed or questioned; irrefutable.
  3. Noun.  A metal-plated ship, vessel, or vehicle.
  4. Noun.  (military) An armor-plated warship.

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This entry was last updated on RefTopia from its source on 3/20/2012.