a toxic, addictive, water-soluble alkaloid, CHN, found in tobacco leaves
Origin of nicotineFrench ; from nicotiane, the tobacco plant ; from Modern Latin nicotiana (herba), Nicot's (plant), after Jean Nicot (1530-1600), French ambassador at Lisbon, who first introduced tobacco into France (1560)
A colorless, poisonous alkaloid, C10H14N2, derived from the tobacco plant and used as an insecticide. It is the substance in tobacco to which smokers can become addicted.
Origin of nicotineFrench, from New Latin nicotiana; see nicotiana.
(usually uncountable, plural nicotines)