|a colourless oily acrid toxic liquid that turns yellowish-brown in air and light: the principal alkaloid in tobacco, used as an agricultural insecticide. Formula: C10H14N2|
|[C19: from French, from New Latin herba nicotiana Nicot's plant, named after J. Nicot (1530--1600), French diplomat who introduced tobacco into France]|
nicotine nic·o·tine (nĭk'ə-tēn')
A colorless, poisonous alkaloid derived from the tobacco plant and used as an insecticide. It is the substance in tobacco to which smokers can become addicted.
|nicotine (nĭk'ə-tēn') Pronunciation Key
A colorless, poisonous compound occurring naturally in the tobacco plant. It is used in medicine and as an insecticide, and it is the substance in tobacco products to which smokers can become addicted. Nicotine is an alkaloid. Chemical formula: C10H14N2.
A poisonous chemical substance found in the tobacco plant.