midpelvis

English

Etymology

From mid- +‎ pelvis.

Noun

midpelvis (plural midpelvises)

  1. (anatomy) A pelvic plane defined by the ischial spines, the lower edge of the pubic symphysis, and the boundary of the fourth and fifth sacral vertebra.
    • 1963 May 1, David N. Danforth, Averon H. Ellis, “Midforceps delivery—a vanishing art?”, in American Journal of Obstetrics and Gynecology, volume 86, number 1, →DOI, page 32:
      At the midpelvis, transverse narrowing may result either from convergent sidewalls or prominent spines or both.
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