Bro"mine (&?;), n. [Gr. &?; bad smell, stink. Cf. Brome.] (Chem.) One of the elements, related in its chemical qualities to chlorine and iodine. Atomic weight 79.8. Symbol Br. It is a deep reddish brown liquid of a very disagreeable odor, emitting a brownish vapor at the ordinary temperature. In combination it is found in minute quantities in sea water, and in many saline springs. It occurs also in the mineral bromyrite.

• a nonmetallic chemical element (symbol Br) with an atomic number of 35; one of the halogens