Definition of peroxide noun from the Oxford Advanced Learner's Dictionary

 

peroxide

 noun
noun
BrE BrE//ˈrɒksaɪd//
 
; NAmE NAmE//ˈrɑːksaɪd//
 
(also hydrogen peroxide)[uncountable] Hair colour, Hair products and accessories
 
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a clear liquid used to kill bacteria and to bleach hair (= make it lighter) a woman with peroxide blonde hair See related entries: Hair colour, Hair products and accessories Word Origin early 19th cent.: from per- + oxide.
See the Oxford Advanced American Dictionary entry: peroxide

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