American English

Definition of biodegrade verb from the Oxford Advanced American Dictionary

 

biodegrade

 verb
verb
NAmE//ˌbaɪoʊdɪˈɡreɪd//
 
[intransitive]Verb Forms present simple I / you / we / they biodegrade
 
he / she / it biodegrades
 
past simple biodegraded
 
-ing form biodegrading
 
 
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(of a substance or chemical) to change back to a harmless natural state by the action of bacteria
See the Oxford Advanced Learner's Dictionary entry: biodegrade