Wikipedia, Jan. 27, 2013 (Bromine is a chemical element with the symbol Br, and atomic number of 35. It is in the halogen group (17).)

WebElements website, Jan. 27, 2013 (Bromine is the only liquid nonmetallic element. It is a member of the halogen group. It is a heavy, volatile, mobile, dangerous reddish-brown liquid.)

Wiktionary, Jan. 27, 2013 (muride: (chemistry, obsolete) bromine)

Webster's revised unabridged dictionary, 1913, via TheFreeDictionary.com, Jan. 27, 2013 (muride (Old Chem.) Bromine; formerly so called from its being obtained from sea water)