Lactucarium

• (n.) The inspissated juice of the common lettuce, sometimes used as a substitute for opium.
Found on http://thinkexist.com/dictionary/meaning/lactucarium/

Lactucarium

Lac`tu·ca'ri·um noun [ New Latin , from Latin lactuca lettuce.] The inspissated juice of the common lettuce, sometimes used as a substitute for opium.
Found on http://www.encyclo.co.uk/webster/L/5

Lactucarium

Lactucarium is the inspissated milky juice of several species of lettuce. It possesses slight anodyne properties, and has sometimes been used as a substitute for opium.
Found on http://www.probertencyclopaedia.com/browse/GL.HTM
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