Defn: Pertaining to, or derived from, the juice of the Lactuca virosa; — said of certain acids.
LACTUCIN
Lac*tu"cin, n. Etym: [From Lactuca: cf. F. lactucine.] (Chem.)
Defn: A white, crystalline substance, having a bitter taste and a neutral reaction, and forming one of the essential ingredients of lactucarium.
LACTUCONE
Lac*tu"cone, n. Etym: [From Lactuca.] (Chem.)
Defn: A white, crystalline, tasteless substance, found in the milky sap of species of Lactuca, and constituting an essential ingredient of lactucarium.
LACTURAMIC
Lac`tu*ram"ic (, a. Etym: [Lactic + urea + amic.] (Chem.)
Defn: Pertaining to, or designating, an organic amido acid, which is regarded as a derivative of lactic acid and urea.
LACTYL
Lac"tyl, n. Etym: [Lactic + -yl.] (Chem.)
Defn: An organic residue or radical derived from lactic acid.
LACUNA La*cu"na, n.; pl. L. Lacunæ; E. Lacunas. Etym: [L., ditch, pit, lake, orig., anything hollow. See Lagoon.]