Breadcrumb Home > Dictionary > Index C Cite cistron: Meaning and Definition of Find definitions for: cis•tron Pronunciation: (sis'tron), [key] — n. Genetics. a segment of DNA that encodes for the formation of a specific polypeptide chain; a structural gene. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cistron (Thesaurus) cistern barometer cistvaen TrendingHere are the facts and trivia that people are buzzing about. April 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World Quetzalcoatl: Aztec Myths and Myths About the Aztecs Related Content Daily Word Quiz: erpsichore Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language