The addictive chemical found in tobacco products.
Tobacco that is chewed, placed between the lower lip and teeth.
The dark, sticky substance that forms when tobacco burns.
A colorless, odorless, poisonous gas.
A cancer causing agent.
A disease in which airways are inflamed and excess mucus is produced.
A disorder in which alveoli in the lungs can no longer function.
Leathery, white patches inside the mouth caused by chewing tobacco.
Smoke that is exhaled from a smoker's lungs.
Smoke that goes directly into the air from burning tobacco.
A combination of mainstream and sidestream smoke.