Pharmacologic Substance
marijuana Audio
ma·ri·jua·na [ mar-uh-wah-nuh ]
Also called:
Cannabis; Ganja; Grass; Hash; Pot; Weed
Definitions related to marihuana:
  • (marijuana) Any part of, or extract from, the female hemp plant Cannabis sativa. Marijuana contains cannabinoids, substances with hallucinogenic, psychoactive, and addictive properties. This agent has potential use for treating cancer pain and cachexia. (NCI04)
    NCI
    U.S. National Cancer Institute, 2021
  • (marijuana) The dried leaves and flowering tops of the Cannabis sativa plant, or an extract from the plant. Marijuana is being studied in the treatment of nausea and vomiting caused by chemotherapy or opiate drugs, such as morphine sulfate. Marijuana is also being studied in the treatment of pain.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • Marijuana is a euphoriant that can cause sedation or dysphoria in some users. Psychologic dependence can develop with chronic use, but very little physical dependence is clinically apparent. Withdrawal is uncomfortable but requires only supportive treatment.
    Merck Manuals
    Merck & Co., Inc., 2025
  • Marijuana, crude drug composed of the leaves and flowers of plants in the genus Cannabis. The term marijuana is sometimes used interchangeably with cannabis; however, the latter refers specifically to the plant genus, which comprises C. sativa and, by some classifications, C. indica and C....
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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