Breadcrumb Home > Dictionary > Index R regulatory gene: Meaning and Definition of Find definitions for: reg'ulatory gene" Pronunciation: [key] — Genetics. Genetics. any gene that exercises control over the expression of another gene or genes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. regulator pin reguline TrendingHere are the facts and trivia that people are buzzing about. Ramadan and Eid al-Fitr 42 Best War Movie Quotes Current Events This Week: March 2023 Recycling Facts William Shakespeare Worst U.S. Forest Fires ✖ Related Content Daily Word Quiz: tangential Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language