A halogen with the atomic symbol Br, atomic number 35, and atomic weight 79.904. It is a volatile reddish-brown liquid that gives off suffocating vapors, is corrosive to the skin, and may cause severe gastroenteritis if ingested.

A naturally occurring halogen element with atomic symbol Br, atomic number 35, and atomic mass 79.904. Bromine, which is found in the earth's crust and sea water, is used in many industrial processes, as well as in insecticides, fire extinguishers, pharmaceuticals, and food and drink products. It is characterized as a dark reddish-brown liquid with an irritating pungent odor, and exposure occurs by inhalation of fumes, ingestion, or contact.

Halogen element with the atomic symbol Br, atomic number 36, and atomic weight 79.904; a volatile reddish-brown liquid that gives off suffocating vapors, is corrosive to the skin, and may cause severe gastroenteritis if ingested.