[ mar-uh-wah-nuh ]
/ ˌmær əˈwɑ nə /
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a psychoactive narcotic drug rendered from the leaves and flowering tops of a cannabis plant, especially Cannabis sativa, used for recreational or medical purposes by smoking, vaping, or ingesting: He’s tried marijuana but claims it has no effect on him.
the dried leaves and flowering tops from which the drug is rendered: Her personal stash of marijuana is rarely more than an ounce or two.
any plant of the genus Cannabis, especially C. sativa, whose leaves and flowering tops have psychoactive properties: several acres of cultivated marijuana.



In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
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The rainy weather could not ________ my elated spirits on my graduation day.
Sometimes ma·ri·hua·na .

Origin of marijuana

An Americanism dating back to 1890–95; from Mexican Spanish marihuana, mariguana; the traditional association with the personal name María Juana is probably a folk etymology
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
  • It sometimes seems as if the entire government had eaten marihuana.

    Diplomatic Days|Edith O'Shaughnessy

British Dictionary definitions for marijuana



/ (ˌmærɪˈhwɑːnə) /


the dried leaves and flowers of the hemp plant, used for its euphoric effects, esp in the form of cigarettesSee also cannabis
another name for hemp (def. 1)
C19: from Mexican Spanish
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for marijuana



The cannabis plant.
A preparation made from the dried flower clusters and leaves of the cannabis plant, usually smoked or eaten to induce euphoria.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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