
Lactose intolerance is the inability of adults to digest lactose, a sugar found in milk and to a lesser extent dairy products, causing side effects. It is due to a lactase deficiency, or hypolactasia. Congenital lactase deficiency prevents babies from drinking even human milk. Lactose intolerant individuals have insufficient levels of lactase, an ...
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http://en.wikipedia.org/wiki/Lactose_intolerance

(from the article `dairy product`) ...by the enzyme lactase. The glucose and galactose can then be absorbed from the digestive tract for use by the body. Individuals deficient in ... ...milk, is a disaccharide made of the monosaccharides glucose and galactose. Some adults can break down the lactose of large quantities of milk into ... ...
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http://www.britannica.com/eb/a-z/l/5

The inability to digest or absorb lactose, a type of sugar found in milk and other dairy products.
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http://www.cancer.gov/dictionary?expand=L

A digestive disorder; the body is unable to break down milk sugar.
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Abdominal cramps and diarrhoea after milk products. Usually due to difficulty in digesting lactose (milk sugar).
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A disorder characterised by abdominal cramps and diarrhoea after the consumption of food containing lactose (for example milk, ice cream), believed to occur due to a deficiency of intestinal lactase (enzyme that breaks down lactose), may appear first in young adults who have previously tolerated milk well as infants. ... (27 Sep 1997) ...
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a disaccharide intolerance specific for lactose, usually due to an inherited deficiency of lactase activity in the intestinal mucosa.
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http://www.encyclo.co.uk/local/21001

A condition in which the body has difficulty digesting dairy products. Symptoms of lactose intolerance include bloating, diarrhea, gas, pain, or cramps.
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http://www.encyclo.co.uk/local/22139

Type: Term Definitions: 1. a disorder characterized by abdominal cramps and diarrhea after consumption of food that contains lactose (milk, ice cream); believed to reflect a deficiency of intestinal lactase; may appear first in young adults who had tolerated milk well as infants.
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http://www.medilexicon.com/medicaldictionary.php?t=45278

Our Lactose intolerance Main Article provides a comprehensive look at the who, what, when and how of Lactose intolerance Lactose intolerance: Inability to digest lactose, a component of milk and most other dairy products. Lactose is sometimes also used as an ingredient in other foods, so those with a lactase deficiency should check labels carefully...
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A disorder resulting in the inability to digest lactose because of an enzyme, lactase, deficiency. Symptoms include bloating, intestinal gas, nausea, diarrhea, and cramps.
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http://www.mhhe.com/biosci/abio/glossary.mhtml

Intolerance to the milk sugar lactose due to deficiency of the enzyme lactase. The condition can be seen in individuals of all ages, including newborn infants. Individuals that are lactose intolerant will have a difficult time consuming any type of milk products. Characteristic symptoms of the condition include abdominal cramps, colicky crying, ......
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[
n] - congenital disorder consisting of an inability to digest milk and milk products
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inability to break down and absorb the sugar lactose
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A physical intolerance and inability to process milk sugars. It should be noted that lactose is consumed by bacteria in the production of cheese and converted to lactic acid. Most cheeses over 60 days old do not contain any lactose, or only contain trace amounts. Milk allergy is often confused with lactose intolerance.
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https://www.encyclo.co.uk/local/21368

A genetic trait characterized by the absence of the enzyme lactase, which breaks down lactose, the main sugar in milk and other dairy products.
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https://www.encyclo.co.uk/local/21571

A human condition in which the digestive system is not able to properly break down the natural sugar found in milk and dairy products. Common symptoms tend to be excessive gas and/or diarrhea.
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https://www.encyclo.co.uk/local/21633

A condition that results from inability to digest the milk sugar-lactose.
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https://www.encyclo.co.uk/local/21800

Whilst not an allergy, it is a common digestive problem, especially in an immature gut, where the body is unable to digest lactose - the sugar found naturally in milk. Always seek the advice of a healthcare professional if youre concerned about your babys digestion.
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https://www.smababy.co.uk/newborn/allergy-glossary/

a food intolerance not allergy. A person with lactose intolerance lacks an enzyme that is needed to digest milk sugar, which causes symptoms such as gas, bloating, and abdominal pain.
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https://www.stanfordchildrens.org/en/topic/default?id=glossary---allergy-as

A condition in which the body has difficulty digesting dairy products. Symptoms of lactose intolerance include bloating, diarrhea, gas, pain, or cramps.
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https://www.whattoexpect.com/pregnancy/glossary
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