1. the act of perceiving; observation; attention: to escape notice. 2. take notice to pay attention; attend. 3. take no notice of to ignore or disregard. 4. information about a future event; warning; announcement. 5. a displayed placard or announcement giving information.
Nicotine: A Stimulant Nicotine, the chemical that makes addicts out of cigarette smokers, is a stimulant with properties similar to those of cocaine and amphetamine (speed). Nicotine provides the pick-me-up that smokers feel.
Nicotine. Nicotine is a naturally occurring chemical in the tobacco plant. When tobacco is burned, nicotine transfers into the smoke. Nicotine has been identified by public health authorities as the addictive substance in tobacco smoke.icotine is a naturally occurring chemical in the tobacco plant. When tobacco is burned, nicotine transfers into the smoke. Nicotine has been identified by public health authorities as the addictive substance in tobacco smoke.