1. A chemical element (symbol Br) that is a reddish-brown liquid at room temperature, used in various industrial and pharmaceutical applications.
Usage: Chemistry term; Atomic number 35

Examples

• Bromine is one of only two elements that are liquid at room temperature.
• The chemist carefully handled the bromine solution in the fume hood.
• Bromine compounds are used in flame retardants and pesticides.
• The periodic table shows bromine between selenium and krypton.
• Swimming pools sometimes use bromine instead of chlorine as a disinfectant.