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.
Blood Sugar (Definition) 1  The blood sugar concentration or blood glucose level is the amount of glucose (sugar) present in the blood of a human or animal. 2  Nicotine is a stimulant drug found in cigarettes and is the addictive component to tobacco. 3  Nicotine gum is an addiction reducing agent which is a kind of psychiatric drug.