verb (used without object), bi·o·de·grad·ed, bi·o·de·grad·ing.
  1. to decay and become absorbed by the environment: toys that will biodegrade when they're discarded.

Origin of biodegrade

First recorded in 1970–75; back formation from biodegradable
Related formsbi·o·deg·ra·da·tion [bahy-oh-deg-ruh-dey-shuh n] /ˌbaɪ oʊˌdɛg rəˈdeɪ ʃən/, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

biodegradation in Medicine


  1. biotransformation
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.