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lobeline

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WordReference Random House Unabridged Dictionary of American English © 2026

lo•be•line n. [Pharm.]

Drugsa 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.

lobel(ia) + -ine³ 1835–45

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