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The addictive chemical found in tobacco products.

smokeless tobacco

Tobacco that is chewed, placed between the lower lip and teeth.


The dark, sticky substance that forms when tobacco burns.

carbon monoxide

A colorless, odorless, poisonous gas.


A cancer causing agent.

chronic bronchitis

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.

mainstream smoke

Smoke that is exhaled from a smoker's lungs.

sidestream smoke

Smoke that goes directly into the air from burning tobacco.

secondhand smoke

A combination of mainstream and sidestream smoke.

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