Glossary D

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Dehydration
An excessive loss of fluids in the body.

Diabetes
A disease in which blood glucose (blood sugar) levels are above normal. Type 2 diabetes, also known as adult-onset or noninsulin-dependent diabetes mellitus (NIDDM), is the most common form of diabetes.

Diaphragm
The muscle wall between the chest and the abdomen.

Diarrhea
Passing frequent and loose stools that can be watery. Acute diarrhea goes away in a few weeks becomes chronic when it lasts longer than 4 weeks.

Dilatation
Expansion of an organ or vessel.

Disorder
A disturbance in regular or normal function. An abnormal condition.

Distention
A swelling of the abdomen.

Diverticulitis
Occurs when a diverticulum become infected or irritated.

Diverticula (diverticulosis)
Small pouches in the colon.

Double blinding
A process in a clinical study that conceals the treatment from both the patient and the investigator.

Duodenum
The first part of the small intestine.

Dysphagia
The sensation of food sticking in the esophagus.

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