Nägele's pelvis

[nāgə-lēz′, nĕgə-ləz]
n.
  1. An obliquely contracted pelvis marked by the arrested development of one lateral half of the sacrum and by deviation of the pubic symphysis to the opposite side.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.