• Inferior portion of the trunk of the body, bounded by the two hip bones, the sacrum and the coccyx.
  CRISP Thesaurus
  National Institutes of Health, 2006
• The bony, basin-shaped structure formed by the hipbones and the base of the backbone supporting the lower limbs in humans.
  NCI
  U.S. National Cancer Institute, 2021
• The lower part of the abdomen, located between the hip bones.
  NCI Dictionary of Cancer Terms
  U.S. National Cancer Institute, 2021
• The space or compartment surrounded by the pelvic girdle (bony pelvis). It is subdivided into the greater pelvis and LESSER PELVIS. The pelvic girdle is formed by the PELVIC BONES and SACRUM.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• Pelvis, in human anatomy, basin-shaped complex of bones that connects the trunk and the legs, supports and balances the trunk, and contains and supports the intestines, the urinary bladder, and the internal sex organs. The pelvis consists of paired hipbones, connected in front at the pubic...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2025