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Medical Term:

Gmelin test

Pronunciation: guh-ma'lin

Definition: an obsolete test for bile in the urine or other body fluid; nitric acid, with a little nitrous acid, is carefully added to a few milliliters of the material to be tested; if bile (bilirubin) is present, it is oxidized to varying degrees, thereby resulting in disclike zones that are (from the interface outward) yellow, red, violet, blue, and green; development of green and violet layers is essential to the validity of the test.

Synonym(s): Rosenbach-Gmelin test

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