pelvic plane of greatest dimensions

pel·vic plane of great·est di·men·sions

the plane extending from the middle of the posterior surface of the pubic symphysis to the junction of the second and third sacral vertebrae, and laterally passing through the ischial bones over the middle of the acetabulum. Synonym(s): second parallel pelvic plane, wide plane

pel·vic plane of great·est di·men·sions

(pel'vik plān grāt'ĕst di-men'shŭnz) The plane that extends from the middle of the posterior surface of the pubic symphysis to the junction of the second and third sacral vertebrae, and laterally passes through the ischial bones over the middle of the acetabulum.