A very common street and recreational drug that comes from the marijuana plant. The plant that produces marijuana, as is well known, is the hemp plant cannabis sativa. The pharmacologically active ingredient in marijuana is tetra-hydro-cannabinol. Marijuana is used to heighten perception, affect mood and relax. It is estimated that about 30% of adults in the U.S. use marijuana. Many people think marijuana is harmless. It is not. Signs of marijuana use include red eyes, lethargy and uncoordinated body movements. The long-term effects may include decrease in motivation and harmful effects on the brain, heart, lung and reproductive system. People who smoke marijuana are more likely to develop cancer of the head and neck. The more often a person smokes marijuana and the longer they continue to smoke it, the greater is their chance of developing cancer in places such as the mouth, tongue, larynx or pharynx.

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mar·i·jua·na also mar·i·hua·na .mar-ə-'wän-əalso -'hwän- n
1) HEMP (1)
2) the dried leaves and flowering tops of the pistillate hemp plant that yield THC and are sometimes smoked in cigarettes for their intoxicating effect compare BHANG, CANNABIS, HASHISH

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mar·i·jua·na (mar″ĭ-hwahґnə) [Mexican Sp.] 1. Cannabis sativa. 2. a crude preparation of the leaves and flowering tops of C. sativa, usually employed in cigarettes and inhaled as smoke for its euphoric properties. See cannabis.

Medical dictionary. 2011.

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  • marijuana — [ marirwana; mariʒɥana ] n. f. VAR. marihuana • 1933; mot esp. d Amérique, d o. i., par l angl. ♦ Drogue faite des feuilles et des tiges du chanvre indien, séchées et hachées. ⇒ haschisch, herbe, 1. kif, marie jeanne, shit. Fumer de la marijuana …   Encyclopédie Universelle

  • Marijuana (EP) — Marijuana EP by Brujeria Released October 3, 2000 Recorded January 11, 1997 …   Wikipedia

  • marijuana — MARIJUÁNA s.f. Stupefiant asemănător cu haşişul, extras din frunzele unei specii de cânepă. [pr.: marihuana] – Din sp., fr. marijuana. Trimis de claudia, 13.09.2007. Sursa: DEX 98  MARIJUANA [pr.: marihuána] f. Stupefiant obţinut din frunzele… …   Dicționar Român

  • marijuana — 1918, altered by influence of Spanish proper name Maria Juana Mary Jane from mariguan (1894), from Mex.Sp. marihuana, of uncertain origin. Marijuana ... makes you sensitive. Courtesy has a great deal to do with being sensitive. Unfortunately… …   Etymology dictionary

  • marijuana — n. 1. A strong smelling Asian plant ({Cannabis sativa}), also called {hemp}, from which a number of euphorogenic and halucinogenic drugs are prepared. The euphoric effect is predominently due to {tetrahydrocannabinol} ({THC}). [Also spelled… …   The Collaborative International Dictionary of English

  • marijuana — index cannabis Burton s Legal Thesaurus. William C. Burton. 2006 marijuana n. Cannabis; a plant wh …   Law dictionary

  • marijuana — s. m. [Botânica] Variedade de cânhamo cujas folhas e flores têm propriedades que provocam alterações no sistema nervoso central. = HAXIXE   ‣ Etimologia: espanhol marijuana …   Dicionário da Língua Portuguesa

  • Marijuana — Marijuana,   Synonym für Stoned …   Universal-Lexikon

  • marijuană — marijuánă s. f. (pl. – ) Trimis de gall, 02.02.2008. Sursa: DMLR …   Dicționar Român

  • marijuana — /mæri hwa:nə/, it. /mari wana/ s. angloamer. [voce di origine prob. sp., di etimo incerto], usato in ital. al femm., invar. [droga leggera che si ottiene facendo seccare le foglie della canapa indiana e che generalm. si fuma in sigarette]… …   Enciclopedia Italiana

  • marijuana — ⊕ marijuana → marihuana …   Diccionario panhispánico de dudas

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