Search Result for "biodegradable pollution":
Wordnet 3.0

NOUN (1)

1. pollution that is rendered harmless by natural processes and so causes no permanent harm; 



WordNet (r) 3.0 (2006):

biodegradable pollution
    n 1: pollution that is rendered harmless by natural processes
         and so causes no permanent harm [ant: nonbiodegradable
         pollution]