The Collaborative International Dictionary of English v.0.48:

panzer \panzer\ n.
   A German tank of the kind used in World War II.
   [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

panzer \panzer\ adj. [German, Panzer armor.]
   1. Equipped with armored vehicles; armored; as, a panzer
      division.
      [WordNet 1.5]

   2. Of, pertaining to, or involving armored military vehicles;
      as, a panzer attack.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

armoured \armoured\ adj.
   1. provided with protective covering; -- used of animals.
      Opposite of unarmored.

   Note: [Narrower terms: bone-covered ; {scaly, scaley,
         scaled.

   Syn: armored.
        [WordNet 1.5]

   2. same as armor-clad; -- used of persons or things
      military. Opposite of unarmored.

   Note: One that is aromour-clad is bulletproof. Narrower
         terms: lightly armored, lightly armoured; mail-clad,
         mailed; panzer; {scaled

   Syn: armored.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

panzer
    n 1: an armored vehicle or tank