Breadcrumb Home > Dictionary > Index E Cite Einsteinian: Meaning and Definition of Find definitions for: Ein•stein•i•an Pronunciation: (īn-stī'nē-un), [key] — adj. pertaining to Albert Einstein or his theories, esp. the theory of relativity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: einsteinian (Thesaurus) Einstein equation einsteinium 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: nostrum Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language