n. [ Nicotine + pyridine. ] (Chem.) A complex, oily, nitrogenous base, isomeric with nicotine, and obtained by the reduction of certain derivatives of the pyridine group. [ 1913 Webster ]
n. [ F. nicotine. See Nicotian. ] (Chem.) An alkaloid which is the active principle of tobacco (
n. [ F. nicotine. See Nicotian. ] (Chem.) An alkaloid which is the active principle of tobacco (