|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]|
nicotinic nic·o·tin·ic (nĭk'ə-tĭn'ĭk, -tē'nĭk)
Of or relating to nicotine.
Of or relating to niacin.