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Medical Term:

Rosenbach test

Pronunciation: ro'zen-bahk

Definition: an obsolete test for bile in the urine; the suspect urine is passed several times through the same filter paper, which is then dried and touched with a drop of slightly fuming nitric acid; the presence of bile is indicated by the resulting play of colors characteristic of the bile pigments (a yellow spot surrounded by rings of red, violet, blue, and green).

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