[mass noun]the chemical element of atomic number 35, a dark red fuming toxic liquid with a choking irritating smell. It is a member of the halogen group and occurs chiefly in the form of salts in seawater and brines(Symbol: Br) (化学元素)溴((符号: Br)
语源
early 19th cent.: from French brome, from Greek brōmos 'a stink' , + -ine