Addictive Drug
a substance that causes physiological or psychological dependence
Nicotine
the addictive drug found in tobacco leaves
Stimulant
a drug that increases the action of the central nervous system, heart, and other organs
Carcinogen
a cancer-causing substance
Tar
a thick, sticky, dark fluid produced when tobacco burns
Carbon Monoxide
a colorless, odorless, and poisonous gas
Smokeless Tobacco
tobacco that is sniffed through the nose, held in the mouth, or chewed
Leukoplakia
thickened, white, leathery-looking spots on the inside of the mouth that can develop into oral cancer
Nicotine Withdrawal
the process that occurs in the body when nicotine, an addictive drug, is no longer used
Nicotine Substitutes
products that deliver small amounts of nicotine into the user's system while he or she is trying to give up the tobacco habit
Tobacco Cessation Program
a course that provides information and help to people who want to stop using tobacco
Environmental Tobacco Smoke
secondhand smoke; air that has been contaminated by tobacco smoke
Mainstream Smoke
the smoke exhaled from the lungs of a smoker
Sidestream Smoke
the smoke from the burning end of a cigarette, pipe, or cigar