biodeterioration
noun
bio·de·te·ri·o·ra·tion ˌbī-(ˌ)ō-di-ˌtir-ē-ə-ˈrā-shən 
: the breakdown of materials by microbial action
Example Sentences
Recent Examples on the Web The researchers detected no visible biodeterioration on the drawing, apart from foxing stains (small yellow-brown spots or blotches). 
Jennifer Ouellette, Ars Technica, 22 Dec. 2020
Jennifer Ouellette, Ars Technica, 22 Dec. 2020 Word History
First Known Use
1953, in the meaning defined above