Lactuca :: Lactuca (n.) A genus of composite herbs, several of which are cultivated foe salad; lettuce..
Lactucarium :: Lactucarium (n.) The inspissated juice of the common lettuce, sometimes used as a substitute for opium..
Lactucic :: Lactucic (a.) Pertaining to, or derived from, the juice of the Lactuca virosa; -- said of certain acids..
Lactucin :: Lactucin (n.) A white, crystalline substance, having a bitter taste and a neutral reaction, and forming one of the essential ingredients of lactucarium..
Lactucone :: Lactucone (n.) A white, crystalline, tasteless substance, found in the milky sap of species of Lactuca, and constituting an essential ingredient of lactucarium..