NICOTINE Meaning and
Definition
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Nicotine is a highly addictive, natural alkaloid substance found in tobacco plants. It is a colorless, oily liquid that belongs to the class of chemical compounds known as alkaloids. It is primarily extracted from tobacco leaves and used as a key ingredient in various tobacco products, including cigarettes, cigars, and chewing tobacco.
When tobacco is consumed, either through smoking or chewing, nicotine rapidly enters the bloodstream and reaches the brain within seconds. It acts as a central nervous system stimulant, interacting with receptors in the brain to produce a wide range of effects. These effects include increased heart rate, elevated blood pressure, and enhanced cognitive function.
Nicotine addiction is a significant concern due to the highly addictive nature of the substance. Regular use of tobacco products leads to the development of physical and psychological dependence on nicotine, making it difficult for individuals to stop using tobacco. Withdrawal symptoms such as irritability, anxiety, and cravings often occur when attempting to quit, further reinforcing the addictive nature of nicotine.
Apart from tobacco products, nicotine can also be found in certain nicotine replacement therapies, such as nicotine patches or gums, which are used to aid in smoking cessation. These products deliver controlled amounts of nicotine to help individuals gradually reduce their dependence on tobacco.
Overall, nicotine is a potent and addictive substance that plays a central role in tobacco addiction, among other effects on the body and brain.
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A poisonous volatile alkaloid, C10H14N2, derived from tobacco; it has been employed as an antidote to strychnine poisoning in doses of gr. 1/60-1/30 (0.001-0.002), and also by intravesical injection in paralysis of the bladder.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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Etymology of NICOTINE
The word "nicotine" is derived from the scientific name of the tobacco plant, Nicotiana tabacum, which is named after Jean Nicot. Jean Nicot was the French ambassador to Portugal in the 16th century, who is credited with introducing tobacco to Europe after sending samples of the plant to the French court in 1560. The alkaloid present in tobacco plants was later isolated and named nicotine in honor of Jean Nicot.
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