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Noun: labarum  la-bu-rum
  1. (historical) the standard adopted by the Emperor Constantine after his conversion to Christianity. It is described as a pike bearing a silk banner hanging from a crosspiece, and surmounted by a golden crown. It bore a monogram of the first two letters (CHR) of the name of Christ in its Greek form. Later, the name was given to various modifications of this standard

Derived forms: labarums

Encyclopedia: Labarum