Breadcrumb Home > Dictionary > Index T Cite trilithon: Meaning and Definition of Find definitions for: tri•lith•on Pronunciation: (trī-lith'on, trī'lu-thon'), [key] — n. a prehistoric structure consisting of two upright stones supporting a horizontal stone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. triliteralism trill 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: mantra Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language