/ Thesaurus / C Synonyms of chemical phenomenon Find synonyms for: Noun1. chemical phenomenon, natural phenomenonusage: any natural phenomenon involving chemistry (as changes to atoms or molecules)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language