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Medical Definition of Obstetric conjugate diameter
1. The diameter that represents the shortest diameter through which the head must pass in descending into the superior strait and measures, by means of X-ray, the distance from the promontory of the sacrum to a point on the inner surface of the symphysis a few millimeters below its upper margin. Synonym: obstetric conjugate diameter. (05 Mar 2000)
Lexicographical Neighbors of Obstetric Conjugate Diameter
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