biodegradablePronunciation: /ˌbʌɪə(ʊ)dɪˈgreɪdəb(ə)l/Translate biodegradable | into French | into German | into Italian | into Spanish Definition of biodegradable adjective (of a substance or object) capable of being decomposed by bacteria or other living organisms and thereby avoiding pollution: consumers have forced a shift to more biodegradable productsDerivatives biodegradabilityPronunciation: /-ˈbɪlɪti/ noun biodegradable in other Oxford dictionaries Definition of biodegradable in the US English dictionary