Definition of "biodegradable"

biodegradable

/(ˌ)baɪoʊdəˈɡɹeɪdəbl̩/

adjective
comparative more biodegradable, superlative most biodegradable
1. Capable of being decomposed by biological activity, especially by microorganisms.
  Quotations
  Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.
  2013 May-June, Charles T. Ambrose, “Alzheimer’s Disease”, in American Scientist, volume 101, number 3, page 200
noun
plural biodegradables
1. Any material that can be decomposed by biological activity.