Definition of bromine noun from the Oxford Advanced American Dictionary

 

bromine

 noun
noun
NAmE//ˈbroʊmin//
 
[uncountable](symbol Br)
 
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a chemical element. Bromine is a dark red, poisonous liquid and has a very strong, unpleasant smell. It is mainly found in the form of salts in ocean water.
See the Oxford Advanced Learner's Dictionary entry: bromine