Organic Chemical
tobacco Audio
to·bac·co [ tuh-bak-oh ]
Definitions related to tobacco:
  • A plant with leaves that have high levels of the addictive chemical nicotine. The leaves may be smoked (in cigarettes, cigars, and pipes), applied to the gums (as dipping and chewing tobacco), or inhaled (as snuff). Tobacco leaves also contain many cancer-causing chemicals, and tobacco use and exposure to secondhand tobacco smoke have been linked to many types of cancer and other diseases. The scientific name is Nicotiana tabacum.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • The dried cured leaves of the tobacco plant, Nicotiana tabacum, used for smoking, chewing, or snuff. Tobacco contains nicotine, a stimulant, and other biologically active ingredients having carcinogenic properties.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Toxic solanaceous American plant Nicotiana tabacum; contains nicotine and other biologically active chemicals; dried leaves are used for smoking, inhalation, or chewing.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • (tobacco products) Substances and products derived from NICOTIANA TABACUM.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
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