资料来源 : Webster's Revised Unabridged Dictionary (1913)

Vallar \Val"lar\, a. [L. vallaris.]
   Of or pertaining to a rampart.

   {Vallar crown} (Rom. Antiq.), a circular gold crown with
      palisades, bestowed upon the soldier who first surmounted
      the rampart and broke into the enemy's camp.