adult lactase deficiency


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a·dult lac·tase de·fi·cien·cy

onset of lactase deficiency, with resulting milk intolerance and malabsorption, in adulthood. Inherited forms may not be manifest until adulthood; any process that damages the intestinal lining cells can cause lactase deficiency in adults.

a·dult lac·tase de·fi·cien·cy

(ă-dŭlt' lak'tās dĕ-fish'ĕn-sē)
A disorder involving onset of difficulties of ingesting lactase, with resulting milk intolerance and malabsorption, in adulthood. Inherited forms may not be manifested until adulthood; any process that damages the intestinal lining cells can cause lactase deficiency in adults.
Synonym(s): lactose intolerance.
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