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1. Congenital disorder consisting of an inability to digest milk and milk products; absence or deficiency of lactase results in an inability to hydrolyse lactose
   - lactase deficiency, milk intolerance

Derived forms: lactose intolerances

Type of: congenital disease, genetic abnormality, genetic defect, genetic disease, genetic disorder, hereditary condition, hereditary disease, inherited disease, inherited disorder

Encyclopedia: Lactose intolerance