lac·​tu·​ca·​ri·​um ˌlak-tə-ˈkar-ē-əm, -ˈker- How to pronounce lactucarium (audio)
: the dried milky juice of a wild lettuce (Lactuca virosa) of central and southern Europe that resembles opium in physical properties and was formerly used as a sedative

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Cite this Entry

“Lactucarium.” Medical Dictionary, Merriam-Webster, Accessed 24 Feb. 2024.

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