br

Noun br has 2 senses

• br(n = noun.substance) atomic number 35, bromine - a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water; Array
is a kind of chemical element, element, halogen

• br(n = noun.group) brigate rosse, red brigades - 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; Array
is a kind of foreign terrorist organization, fto, terrorist group, terrorist organization