Breadcrumb Home > Dictionary > Index M methamphetamine: Meaning and Definition of Find definitions for: meth•am•phet•a•mine Pronunciation: (meth"am-fet'u-mēn", -min), [key] — n. Pharm. a central nervous system stimulant, CHN, used clinically in the treatment of narcolepsy, hyperkinesia, and for blood pressure maintenance in hypotensive states: also widely used as an illicit drug. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: methamphetamine (Thesaurus) methaemoglobin methanal TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: radula Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language