milk sugar

noun

1. lactose.

milk sugar

noun

1. another name for lactose

Word History and Origins

Origin of milk sugar¹

First recorded in 1840–50

Example Sentences

Cheese becomes acidic either through direct acidification or by adding lactic acid-producing bacteria that convert milk sugars into lactic acid.

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Lactose, or milk sugar, is a disaccharide made of two simple sugars – glucose and galactose – in a 1:1 ratio.

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Lactase enables us to digest the milk sugar lactose, so lactase persistence is useful for a diet involving dairy products.

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This ability, known as lactase persistence, comes from an enzyme that breaks down milk sugar and usually shuts down after young children are weaned.

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Over the past 10,000 years, populations living far apart in Europe, Africa, South Asia, and the Middle East separately acquired a key genetic change: the ability to digest the milk sugar lactose as adults.

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