| lactic | <physiology> Of or pertaining to milk; procured from sour milk or whey; as, lactic acid; lactic fermentation, etc. <biochemistry, physiology> Lactic acid, a sirupy, colourless fluid, soluble in water, with an intensely sour taste and strong acid reaction. There are at least three isomeric modifications all having the formula C3H6O3. Sarcolactic or paralactic acid occurs chiefly in dead muscle tissue, while ordinary lactic acid results from fermentation. The two acids are alike in having the same constitution (expressed by the name ethylidene lactic acid), but the latter is optically inactive, while sarcolactic acid rotates the plane of polarization to the right. The third acid, ethylene lactic acid, accompanies sarcolactic acid in the juice of flesh, and is optically inactive. Lactic ferment, an organised ferment (Bacterium lacticum or lactis), which produces lactic fermentation, decomposing the sugar of milk into carbonic and lactic acids, the latter, of which renders the milk sour, and precipitates the casein, thus giving rise to the so-called spontaneous coagulation of milk. Lactic fermentation. See Fermentation. Origin: L. Lac, lactis, milk: cf. F. Lactique. See Lacteal, and cf. Galactic. Source: Websters Dictionary (01 Mar 1998) |
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| lactic acid | A byproduct of carbohydrate metabolism (anaerobic metabolism). A lactic acid level may be measured in the bloodstream in conditions of metabolic acidosis. Lactic acid is an intermediate product of carbohydrate metabolism and is derived mainly from muscle cells and red blood cells. Exercise will normally raise lactic acid levels. Conditions of oxygen deprivation (for example shock, heart failure, lung disease) will trigger anaerobic metabolism within muscle tissue resulting in lactic acid build up in the tissues. Normal lactic acid levels are 4.5 to 19.8 mg/dl. (25 Jun 1999) |
| lactic acid bacillus | A member of the genus Lactobacillus. (05 Mar 2000) |
| lactic acid bacteria | <microbiology> A group of Gram-positive, non-sporing bacteria which carry out a lactic acid fermentation of sugars. It includes species of Lactobacillus, Leuconostoc, Pediococcus and Streptococcus. See: lactic acid fermentation. (25 Jun 1999) |
| lactic acid dehydrogenase | <enzyme> An enzyme with 5 forms: LDH-1 is in the heart, its blood level can rise when heart muscle is damaged. Other forms can be found in the liver, brain, kidney, skeletal muscle and bone. A useful blood test in the evaluation of many disease processes, including heart attack, liver disease, muscular dystrophy and bone disease. (27 Sep 1997) |
| lactic acid fermentation | <biochemistry> A type of fermentation carried out by lactic acid bacteria in which sugar (for example lactose, glucose, pentose) are converted either entirely (or almost entirely) to lactic acid (homolactic fermentation) or to a mixture of lactic acid and other products (heterolactic fermentation). (09 Oct 1997) |
| lactic acid level | <investigation> A test that measures the amount of lactic acid in the blood. (25 Jun 1999) |
| lactic acid oxidative decarboxylase | A flavoprotein oxidoreductase catalyzing oxidation (with O2) of l-lactate to acetate plus CO2 and water. Synonym: lactic acid oxidative decarboxylase. (05 Mar 2000) |
| lactic acidemia | The presence of dextrorotatory lactic acid in the circulating blood. Synonym: lactacidemia. Origin: Lactic acid + G. Haima, blood (05 Mar 2000) |
| lactic acidosis | <biochemistry, physiology> Acidosis caused by accumulation of lactic acid more rapidly than it can be metabolised. It may occur spontaneously or in association with diseases such as diabetes mellitus, leukaemia, or liver failure. (25 Jun 1999) |
| lactic dehydrogenase | <enzyme> The enzyme that catalyses the formation and removal of lactate according to the equation: pyruvate + NADH = lactate NAD. <cell culture> The appearance of lactic dehydrogenase in the medium is often usedas an indication of cell death and the release of cytoplasmic constituents. Acronym: LDH (25 Jun 1999) |
| lactide | <chemistry> A white, crystalline substance, obtained from also, by extension, any similar substance. Origin: Lactic + anhydride. Source: Websters Dictionary (01 Mar 1998) |
| lactiferous | Bearing or containing milk or a milky fluid; as, the lactiferous vessels, cells, or tissue of various vascular plants. Origin: l. Lac, lactis, milk: cf. F. Lactifere. Source: Websters Dictionary (01 Mar 1998) |
| lactiferous ampulla | A circumscribed spindle-shaped dilation of the lactiferous duct just before it enters the nipple. In nursing mothers this dilatation stores a droplet of milk which is expressed by compression as the infant begins to suckle; this is thought to encourage continual suckling while the let-down reflex ensues. Synonym: sinus lactiferi, ampulla lactifera, ampulla of milk duct, lactiferous ampulla. (05 Mar 2000) |
| lactiferous ducts | The ducts, numbering 15 or 20, which drain the lobes of the mammary gland; they open at the nipple. Synonym: ductus lactiferi, canalicular ducts, galactophore, galactophorous canals, galactophorous ducts, mamillary ducts, mammary ducts, milk ducts, tubuli galactophori, tubuli lactiferi. (05 Mar 2000) |
Synonyms : Acid, Lactic
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| lactic |
of or relating to or obtained from milk (especially sour milk or whey); "lactic acid"; "lactic fermentation"
Ãâó: wordnet.princeton.edu/perl/webwn
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| lactic acid |
a clear odorless hygroscopic syrupy carboxylic acid found in sour milk and in many fruits
Ãâó: wordnet.princeton.edu/perl/webwn
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| lactiferous duct |
ducts of the mammary gland that carry milk to the nipple
Ãâó: wordnet.princeton.edu/perl/webwn
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| lactifuge |
any agent that reduces milk secretion (as given to a woman who is not breast feeding)
Ãâó: wordnet.princeton.edu/perl/webwn
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| lactic acid |
Lactic acid (α-hydroxypropionic acid) is a chemical compound that plays a role in several biochemical processes. It is the acid that gives old milk its sour taste, and it accumulates in skeletal muscles during extensive anaerobic exercise, causing temporary muscle pain. Lactic acid is quickly removed from muscles when they resume aerobic metabolism. Delayed onset muscle soreness usually becomes apparent more than 24 hours after exercising and is not caused by lactic acid buildup. ...
Ãâó: en.wikipedia.org/wiki/Lactic_acid
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| lacti | of or relating to or obtained from milk (especially sour milk or whey) |
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| lacti | a clear odorless hygroscopic syrupy carboxylic acid found in sour milk and in many fruits |
| lacti | ducts of the mammary gland that carry milk to the nipple |
| lacti | any agent that reduces milk secretion (as given to a woman who not breast feeding) |
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