/ Thesaurus / M Synonyms of modifier gene Find synonyms for: Noun1. modifier, modifier gene, gene, cistron, factorusage: a gene that modifies the effect produced by another geneWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language