Nicotidine n. : A complex, oily, nitrogenous base, isomeric with nicotine, and obtained by the reduction of certain derivatives of the pyridine group.

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Taxonomy
nicotine, the brain, schizophrenia, PMID, smokers, risk, body, nicotinic receptor, dependence, 2006-11-06, Nicotine addiction, nicotinic acetylcholine receptors, Research, nicotine acts, increases, cigarettes, sensitivity, Nicotine dependence.

Defination from the web:
nicotine), the substance acts as a stimulant in mammals and is one of ... Nicotine is named after the tobacco plant Nicotiana tabacum, which in turn is named after Jean Nicot de Villemain, French ambassador in Portugal, ...