lactose

[ lak-tohs ]

/ ˈlæk toʊs /

SEE SYNONYMS FOR lactose ON THESAURUS.COM

noun

Biochemistry. a disaccharide, C12H22O11, present in milk, that upon hydrolysis yields glucose and galactose.

a white, crystalline, sweet, water-soluble commercial form of this compound, obtained from whey and used in infant feedings, in confections and other foods, in bacteriological media, and in pharmacology as a diluent and excipient.

Also called milk sugar, sugar of milk.

Origin of lactose

First recorded in 1855–60; lact- + -ose²

Words nearby lactose

lactonize, lacto-ovo-vegetarian, lactoprotein, lactorrhea, lactoscope, lactose, lactose intolerance, lactosuria, lactotherapy, lactotropin, lactovegetarian

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for lactose

Levulose, lactose, and some others are occasionally met with.
A Manual of Clinical Diagnosis|James Campbell Todd
The mass curdles and separates into a solid curd (proteid and fat) and a clear fluid (the whey), which contains the lactose.
A Practical Physiology|Albert F. Blaisdell
Lactose (sugar of milk) is one of the most important constituents in the milk of all mammals.
Dietetics for Nurses|Fairfax T. Proudfit
It seems that the tendency is toward an increase of lactic acid in the cheese long after the lactose has disappeared.
The Book of Cheese|Charles Thom and Walter Warner Fisk

The diet may be reënforced with lactose and meat added only when convalescence is well established.
Dietetics for Nurses|Fairfax T. Proudfit

British Dictionary definitions for lactose

lactose

/ (ˈlæktəʊs, -təʊz) /

noun

a white crystalline disaccharide occurring in milk and used in the manufacture of pharmaceuticals and baby foods. Formula: C 12 H 22 O 11Also called: milk sugar

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for lactose

lactose

[ lăk′tōs′ ]

n.

A disaccharide in milk that hydrolyzes to yield glucose and galactose.milk sugar

A white crystalline substance obtained from whey and used in infant foods and in pharmaceuticals as a diluent and excipient.milk sugar

Scientific definitions for lactose

lactose

[ lăk′tōs′ ]

A white crystalline disaccharide consisting of a glucose and a galactose molecule, found in milk and used in the manufacture of various other foods. Chemical formula: C12H22O11.

The inability to digest lactose properly is called lactose intolerance. It is caused by a deficiency of the enzyme lactase and marked by abdominal cramping and other symptoms after ingesting lactose.

单词	lactose
释义	lactose [ lak-tohs ] / ˈlæk toʊs / SEE SYNONYMS FOR lactose ON THESAURUS.COM noun Biochemistry. a disaccharide, C12H22O11, present in milk, that upon hydrolysis yields glucose and galactose. a white, crystalline, sweet, water-soluble commercial form of this compound, obtained from whey and used in infant feedings, in confections and other foods, in bacteriological media, and in pharmacology as a diluent and excipient. Also called milk sugar, sugar of milk. Origin of lactose First recorded in 1855–60; lact- + -ose² Words nearby lactose lactonize, lacto-ovo-vegetarian, lactoprotein, lactorrhea, lactoscope, lactose, lactose intolerance, lactosuria, lactotherapy, lactotropin, lactovegetarian Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for lactose Levulose, lactose, and some others are occasionally met with. A Manual of Clinical Diagnosis\|James Campbell Todd The mass curdles and separates into a solid curd (proteid and fat) and a clear fluid (the whey), which contains the lactose. A Practical Physiology\|Albert F. Blaisdell Lactose (sugar of milk) is one of the most important constituents in the milk of all mammals. Dietetics for Nurses\|Fairfax T. Proudfit It seems that the tendency is toward an increase of lactic acid in the cheese long after the lactose has disappeared. The Book of Cheese\|Charles Thom and Walter Warner Fisk The diet may be reënforced with lactose and meat added only when convalescence is well established. Dietetics for Nurses\|Fairfax T. Proudfit British Dictionary definitions for lactose lactose / (ˈlæktəʊs, -təʊz) / noun a white crystalline disaccharide occurring in milk and used in the manufacture of pharmaceuticals and baby foods. Formula: C 12 H 22 O 11Also called: milk sugar Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to lactose sugar, starch, glucose, cellulose, carbohydrate, galactose, glycogen, monosaccharide, disaccharide, sucrose, maltose, fructose, dextrose, dextrin, polysaccharide, candy, levulose, saccharin, xylose, caramel Medical definitions for lactose lactose [ lăk′tōs′ ] n. A disaccharide in milk that hydrolyzes to yield glucose and galactose.milk sugar A white crystalline substance obtained from whey and used in infant foods and in pharmaceuticals as a diluent and excipient.milk sugar The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for lactose lactose [ lăk′tōs′ ] A white crystalline disaccharide consisting of a glucose and a galactose molecule, found in milk and used in the manufacture of various other foods. Chemical formula: C12H22O11. The inability to digest lactose properly is called lactose intolerance. It is caused by a deficiency of the enzyme lactase and marked by abdominal cramping and other symptoms after ingesting lactose. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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lactose

noun

Origin of lactose

Words nearby lactose

Example sentences from the Web for lactose

British Dictionary definitions for lactose

noun

Words related to lactose

Medical definitions for lactose

n.

Scientific definitions for lactose