- bromine, Br, atomic number 35 - a nonmetallic largely pentavalent heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water
--1 is a kind of chemical element, element; halogen
--1 is a substance of seawater, saltwater, brineDerived forms: verb brominate1, verb brominate2, verb bromate1, verb bromate2