bi·o·de·grad·a·ble 
(bī′ō-dĭ-grādə-bəl)
(bī′ō-dĭ-grādə-bəl)adj.
Capable of being decomposed by biological agents, especially bacteria: a biodegradable detergent.
bi′o·de·grad′a·bili·ty n.
bi′o·deg′ra·dation (-dĕg′rə-dāshən) n.
bi′o·de·grade v.