a crystalline, poisonous alkaloid, C22H27NO2, obtained by extraction from lobelia: used chiefly in the form of its sulfate or hydrochloride as a respiratory stimulant and, because of its nicotinelike pharmacological action, as an agent to discourage tobacco smoking.
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How to use lobeline in a sentence
The chief constituent is a volatile liquid alkaloid (cf. nicotine) named lobeline, which occurs to the extent of about 30 %.
British Dictionary definitions for lobeline
a crystalline alkaloid extracted from the seeds of the Indian tobacco plant, used as a smoking deterrent and respiratory stimulant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012