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1. (n.) lactose
a disaccharide, C
2. lactose
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.
Etymology: (1855–60; < L lact-, s. of
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| Definition of 'LACTOSE' |
Princeton's WordNet |
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1. (noun) lactose, milk sugar
a sugar comprising one glucose molecule linked to a galactose molecule; occurs only in milk
"cow's milk contains about 4.7% lactose"
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| Definition of 'LACTOSE' |
Webster Dictionary |
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1. (noun) LACTOSE
sugar of milk or milk sugar; a crystalline sugar present in milk, and separable from the whey by evaporation and crystallization. It has a slightly sweet taste, is dextrorotary, and is much less soluble in water than either cane sugar or glucose. Formerly called lactin
2. (noun) LACTOSE
see Galactose
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| Definition of 'LACTOSE' |
U.S. National Library of Medicine |
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1. LACTOSE
A disaccharide of GLUCOSE and GALACTOSE in human and cow milk. It is used in pharmacy for tablets, in medicine as a nutrient, and in industry.
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Definitions of LACTOSE 
