Pronunciation: (SEH-kund-hand ...)
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.
Definition from: Cancer.gov2007-07-06 Date last modified: 2007-07-03Secondhand Smoke and CancerHumo de tabaco en el ambiente y el cáncer