secondhand smoke

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1 Definition of secondhand smoke

Meaning of secondhand smoke: Smoke that comes from the burning of a tobacco product and smoke that is exhaled by smokers.

Smoke that comes from the burning of a tobacco product and smoke that is exhaled by smokers. Inhaling secondhand smoke is called involuntary or passive smoking. Also called environmental tobacco smoke and ETS.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.