Definition of pelvis in English:
noun (plural pelvises or pelves /-vēz/)
1The large bony structure near the base of the spine to which the hind limbs or legs are attached in humans and many other vertebrates.
- He lived only ten weeks after his diagnosis, the disease having already metastasized to his spine and bony pelvis, femur, skull, and tibia.
- Since the two iliac bones are bound strongly together at the centre front, the bony pelvis (sacrum and iliac bones) can only be tilted as a whole by movement at the hip joints and by bending the spine.
- Laterally, anteriorly and posteriorly the pelvis is bony and significant support is provided through ligaments.
1.1The part of the abdomen including or enclosed by the pelvis.
- They are usually found in groups in different places throughout the body, including the neck, armpit, chest, abdomen, pelvis, and groin.
- Several surgical procedures of the head, neck, chest, abdomen, pelvis, back, and limbs are described.
- A computed tomographic scan of the abdomen and the pelvis showed subtle lymph node enlargement in the retroperitoneum.
2 (also renal pelvis) The broadened top part of the ureter into which the kidney tubules drain.
- The nephrectomy specimen revealed a dilated renal pelvis and ureter.
- Abdominal magnetic resonance imaging and computed tomography identified a large mass in the left kidney and numerous obstructing blood clots in the left renal pelvis, left ureter, and urinary bladder.
- An atypical hydronephrotic type may have isolated ureteral atresia with multiple cysts communicating with a dilated renal pelvis with dysplastic renal tissue forming trabeculae between the cysts.
early 17th century: from Latin, literally 'basin'.
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