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English definition of “biodegrade”

biodegrade

verb [I] uk   /ˌbaɪ.əʊ.dɪˈɡreɪd̩/ us    /-oʊ-/
to decay naturally and in a way that is not harmful : Some plastics are designed to biodegrade when their useful life is over.Environmental issuesRubbish and wasteProtection and protectorsDecaying and staying fresh
(Definition of biodegrade from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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