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biodegrade

verb [I]
 
 
/ˌbaɪ.əʊ.dɪˈɡreɪd̩/ US  /-oʊ-/

Definition

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 verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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