Relating to or containing bromine in a chemical compound, especially bromine compounds with lower oxidation states.
From 'bromine' + Latin '-ous' suffix (indicating a lower oxidation state). Chemists use this term to distinguish compounds like bromous acid from other bromine compounds.
In chemistry, '-ous' endings are like saying 'the cheaper version'—bromous compounds have less oxygen attached compared to bromic compounds. It's chemistry's way of organizing similar elements!
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