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Medical Term:

true conjugate


Definition: 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(s): conjugata veraTA, obstetric conjugate diameter, obstetric conjugate

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.