Definition of lactose in English:

Share this entry


Pronunciation: /ˈlaktəʊz/


[mass noun] Chemistry
A sugar present in milk. It is a disaccharide containing glucose and galactose units.
Example sentences
  • The common sugars that form part of the diet are sucrose, lactose (milk sugar), and maltose.
  • The enzyme lactase breaks down the lactose to galactose and glucose.
  • Soymilk does not contain lactose (milk sugar) and can be drunk by those who are allergic to normal milk.
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.