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Lactose - Meaning, Definition & English Examples

Lactose is a natural sugar found in milk and dairy products. It is digested by the enzyme lactase, and some people cannot digest it properly, causing lactose intolerance.

lactose

/ˈlæktoʊs/ /ˈlæktəʊs/

Definition:

A sugar present in milk, composed of glucose and galactose.

Synonyms:

milk sugar, dairy sugar

Part of Speech:

noun

Antonyms:

sucrose, fructose

Common Collocations:

lactose intolerance, lactose-free, lactose digestion, lactose content

Derivatives:

lactase, lactosuria

Usage Tips:

Use "lactose" when referring to the sugar found in milk or dairy products.

Common Phrases:

lactose intolerance, lactose-free milk, break down lactose

Etymology:

From Latin "lac" (milk) + "-ose" (sugar suffix), coined in the 19th century.

Examples:

  • 1. Milk contains lactose, a natural sugar.
  • 2. Some people cannot digest lactose properly.
  • 3. Lactose-free products are available for those with intolerance.
  • 4. Cheese has less lactose than fresh milk.

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