/ Thesaurus / C Synonyms of chemical reaction Find synonyms for: Noun1. chemical reaction, reaction, chemical process, chemical change, chemical actionusage: (chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language