Lactase - Meaning, Definition & English Examples
Lactase is an enzyme that breaks down lactose, the sugar found in milk, into simpler sugars. People lacking lactase may experience lactose intolerance, causing digestive discomfort after consuming dairy.
Definition:
An enzyme that breaks down lactose into glucose and galactose.
Synonyms:
lactase-phlorizin hydrolase, LPH, beta-galactosidase
Part of Speech:
noun
Antonyms:
lactose intolerance, lactase deficiency
Common Collocations:
lactase enzyme, lactase supplement, lactase persistence
Derivatives:
lacteal, lactation
Usage Tips:
Use "lactase" to refer to the enzyme aiding lactose digestion; often mentioned in dietary contexts.
Common Phrases:
lactase deficiency, lactase persistence, lactose-free milk
Etymology:
From Latin "lac" (milk) + "-ase" (enzyme suffix), coined in the early 20th century.
Examples:
- 1. Lactase helps digest dairy products efficiently.
- 2. Some people lack sufficient lactase to process milk.
- 3. Lactase supplements can ease lactose intolerance symptoms.
- 4. Infants produce high levels of lactase for breastfeeding.