/ Thesaurus / O Synonyms of operator gene Find synonyms for: Noun1. operator gene, gene, cistron, factorusage: a gene that activates the production of messenger RNA by adjacent structural genesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language