font size

Definition of Lactase

Lactase: Enzyme that breaks down the milk sugar lactose into glucose and galactose. Persons with a deficiency of lactase (alactasia) in the gut can develop abdominal cramping and diarrhea after ingesting milk products.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=6200
Last Editorial Review: 8/28/2013

Drug Medical Dictionary of Terms by Letter

Top RxList Drug News

Weight Loss Wisdom

Get tips, recipes and inspiration.

advertisement
advertisement
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations

From WebMD