Definition of 'br'

Noun

1. a nonmetallic largely pentavalent heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water
      Synonyms: bromine atomic number 35
2. a Marxist-Leninist terrorist organization that arose out of a student protest movement in the late 1960s; wants to separate Italy from NATO and advocates violence in the service of class warfare and revolution; mostly inactive since 1989
      Synonyms: Red Brigades Brigate Rosse

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