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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Humo de tabaco ambiental

Environmental tobacco smoke (en-VY-run-MEN-tul tuh-BA-koh )
Smoke that comes from the burning of a tobacco product and smoke that is exhaled by smokers. Inhaling environmental tobacco smoke is called involuntary or passive smoking. Also called ETS and secondhand smoke.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.