lungs: Parts of the body in the chest that release carbon dioxide from the body and bring oxygen into the blood stream.
mainstream smoke: Smoke is smoke that people who are smoking exhale.
nicotine: An addictive component of tobacco. Nicotine can also be produced synthetically. Nicotine is also used as an insecticide.
nicotine gum: A gum that contains a small amount of nicotine and is used by those who are trying to quit smoking.
nicotine lozenge: A lozenge that contains a small amount of nicotine and is designed to be sucked slowly over a period of 20 to 30 minutes to help with nicotine cravings.
nicotine nasal spray: A nasal spray used to treat cravings for nicotine. Nicotine nasal spray is usually used one to five times per hour in each nostril.
nicotine patch: A patch that contains a small amount of nicotine. When the patch is attached to skin, the nicotine is absorbed into the body to help with cravings for nicotine.
nicotine replacement therapy: Also known as NRT; uses treatments that contain nicotine, such as nicotine patches or nicotine gum, to help a person quit smoking.