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Medical Term:

Zimmermann reaction

Pronunciation: zim′er-mahn

Definition: a chemical reaction between an alkaline solution of meta-dinitrobenzene and an active methylene group (carbon-16) of 17-ketosteroids; it is the basis of the 17-ketogenic steroid assay test; more generally, a reaction between methylene ketones and aromatic polynitro compounds in alkaline solutions.

Synonym(s): Zimmermann test

[W. Zimmermann]