external conjugate diameter


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Related to external conjugate diameter: conjugata vera

ex·ter·nal con·ju·gate

[TA]
the distance in a straight line between the depression under the last spinous process of the lumbar vertebrae and the upper edge of the pubic symphysis.

external conjugate diameter

The anteroposterior diameter of the pelvic inlet measured externally; the distance from the skin over the upper part of the symphysis pubis to the skin over a point corresponding to the sacral promontory.
See also: diameter