lactucarium
noun
lac·tu·ca·ri·um
ˌlak-tə-ˈkar-ē-əm, -ˈker- 
: 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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“Lactucarium.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/lactucarium. Accessed 15 Dec. 2024.
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