/ Thesaurus / K Synonyms of katabolism Find synonyms for: Noun1. catabolism, katabolism, dissimilation, destructive metabolism, organic process, biological processusage: breakdown in living organisms of more complex substances into simpler ones together with release of energyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language