生物降解 shēngwùjiàngjiě biodegradation Origin Definitions Defs Strokes Stroke Words Sentences Sents 生物 shēngwù noun biological (bound form) related to biology; bio-降解 jiàngjiě verb to degrade to degrade or decompose; specifically refers to the breakdown of organic matter or the reduction of molecular weight in polymers through exposure to light, acids, or chemicals