Br
       n 1: a nonmetallic largely pentavalent heavy volatile corrosive
            dark brown liquid element belonging to the halogens;
            found in sea water [syn: bromine, atomic number 35]
       2: a Marxist-Leninist terrorist organizaiton 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 [syn: Red Brigades, Brigate Rosse]