(Lac"tide) n. [Lactic + anhydride.] (Chem.) A white, crystalline substance, obtained from lactic
acid by distillation, and regarded as an anhydride; also, by extension, any similar substance.
(Lac*tif"er*ous) a. [l. lac, lactis, milk + -ferous: cf. F. lactifère.] Bearing or containing milk
or a milky fluid; as, the lactiferous vessels, cells, or tissue of various vascular plants.
(Lac*tif"ic Lac*tif"ic*al) a. [L. lac, lactis, milk + facere to make.] Producing or yielding milk.
(Lac"ti*fuge) n. [L. lac, lactis, milk + fugare to expel.] (Med.) A medicine to check the
secretion of milk, or to dispel a supposed accumulation of milk in any part of the body.
(Lac"tim) n. [Lactic + imido.] (Chem.) One of a series of anhydrides resembling the lactams,
but of an imido type; as, isatine is a lactim. Cf. Lactam.
(Lac*tim"ide) n. [Lactic + imide.] (Chem.) A white, crystalline substance obtained as an
anhydride of alanine, and regarded as an imido derivative of lactic acid.
(Lac"tin) n. [L. lac, lactis, milk: cf. F. lactine. Cf. Galactin.] (Physiol. Chem.) See Lactose.
(Lac`to*a*bu"min) n. [L. lac, lactis, milk + E. albumin.] (Physiol. Chem.) The albumin
present in milk, apparently identical with ordinary serum albumin. It is distinct from the casein of milk.
(Lac`to*bu`ty*rom"e*ter) n. [L. lac, lactis, milk + E. butyrometer.] An instrument
for determining the amount of butter fat contained in a given sample of milk.
(Lac`to*den*sim"e*ter) n. [L. lac, lactis, milk + E. densimeter.] A form of hydrometer,
specially graduated, for finding the density of milk, and thus discovering whether it has been mixed with
water or some of the cream has been removed.
(Lac*tom"e*ter) n. [L. lac, lactis, milk + meter: cf. F. lactomètre. Cf. Galactometer.] An
instrument for estimating the purity or richness of milk, as a measuring glass, a specific gravity bulb, or
(Lac"tone) n. (Chem.) One of a series of organic compounds, regarded as anhydrides of
certain hydroxy acids. In general, they are colorless liquids, having a weak aromatic odor. They are so
called because the typical lactone is derived from lactic acid.
(Lac*ton"ic) a. [From Lactone.] (Chem.) Of, pertaining to, or derived from, lactone.