Noun
An alkaloid which is the active principle of tobacco. It is a colorless, transparent, oily liquid, having an acrid odor, and an acrid burning taste. It is intensely poisonous.
Source: Webster's dictionaryCigarettes, I won't do cigarettes, nicotine will kill ya. Tommy Chong
I know one lab that studies nicotine receptors and all the scientists are smokers, and another lab that studies impulse control and they're all overweight. David Eagleman
Nicotine is both a stimulant and a depressant, so that can make one feel quite imbalanced. Christy Turlington
We think about mortality so little, these days, except to flail hysterically at it with trendy forms of exercise and high-fiber cereals and nicotine patches. Tana French
Anything that affects your senses ... is your business. If you want to kill yourself through nicotine or cyanide, it's your business. Timothy Leary
I like nicotine because it excites my brain and helps me work. Umberto Eco