Breadcrumb Home > Dictionary > Index M Cite mind-expanding: Meaning and Definition of Find definitions for: mind-ex•pand•ing Pronunciation: (m?nd'ik-span"ding), [key] ? adj. heightening perceptions in a hallucinatory way: mind-expanding drugs. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. See also: mindexpanding (Thesaurus) minder mindful TrendingHere are the facts and trivia that people are buzzing about. February 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 The Manchu Related Content Daily Word Quiz: puerile Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language