barium enema

Definition / meaning of barium enema

A procedure in which a liquid with barium in it is put into the rectum and colon by way of the anus. Barium is a silver-white metallic compound that helps to show the image of the lower gastrointestinal tract on an x-ray.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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