Definition of nicotine noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈnɪkətiːn//
; NAmE NAmE//ˈnɪkətiːn//
[uncountable] Addiction
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a poisonous substance in tobacco that people become addicted to, so that it is difficult to stop smoking The nicotine stains on his fingers told me he was under stress. nicotine replacement therapy See related entries: Addiction Word Originearly 19th cent.: from French, from nicotiana (from modern Latin nicotiana (herba) ‘tobacco (plant)’, named after Jean Nicot, a 16th-cent. French diplomat who introduced tobacco to France in 1560) + -ine.
See the Oxford Advanced American Dictionary entry: nicotine