di·ag·o·nal conjugate (d - g  -nl)n. The distance from the promontory of the sacrum to the lower margin of the pubic symphysis. Also called false conjugate. |
diagonal conjugate
[dī·ag′ənəl]
a radiographic measurement of the distance from the inferior border of the symphysis pubis to the sacral promontory. The measurement, which averages around 12.5 to 13.0 cm in adult women, may also be determined by vaginal examination. See also conjugate, true conjugate.
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