[loh-buh-leen, -lin]
noun Pharmacology.
a crystalline, poisonous alkaloid, C 22 H 27 NO 2 , 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.

1835–45; lobel(ia) + -ine3

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World English Dictionary
lobeline (ˈləʊbəˌliːn)
a crystalline alkaloid extracted from the seeds of the Indian tobacco plant, used as a smoking deterrent and respiratory stimulant
[C19: from lobelia]

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