Definition of pelvis in English:


nounPlural pelvises, Plural pelves

  • 1The large bony frame near the base of the spine to which the hindlimbs or legs are attached in humans and many other vertebrates.

    • ‘The two pubic bones are the hub of a network of muscles, tendons and tissues at the base of the pelvis.’
    • ‘The remains include a complete tibia and shoulder blade, as well as parts of a femur, ribs, vertebrae, collarbone and pelvis, as well as an ankle bone.’
    • ‘Laterally, anteriorly and posteriorly the pelvis is bony and significant support is provided through ligaments.’
    • ‘About a million people in the UK have the illness, which leads to accelerated bone growth, particularly in the skull, pelvis, spine, thighs and shins.’
    • ‘The research is based on a dinosaur pelvis that contains a single pair of shelled eggs inside the body cavity.’
    • ‘In addition, the attachment between the pelvis and the vertebral column enlarged to provide additional strength in response to an increase in the amount of force generated by the hind limbs.’
    • ‘Maintain this relationship between your pelvis and spine throughout each exercise.’
    • ‘While in radiology, a computed tomographic scan-guided needle biopsy of a tumor nodule in the bony pelvis was conducted.’
    • ‘In the case of your son's groin strain, your osteopath would be checking your son's sacro-iliac joints, his lumbar spine and all the muscles that attach to his pelvis.’
    • ‘But they feel for the upper part of their pelvis, the bony part, and the lower part of the rib cage, and that's the space in which they're measuring.’
    • ‘This forms a joint with the pelvis (hip bone) on either side, called the sacroiliac joint.’
    • ‘It had already metastasized to his spinal column and his bony pelvis, femurs, skull, and tibia.’
    • ‘She says that the relationship of the pelvis to the spine and the limbs is fundamental to most contemporary dance techniques.’
    • ‘A computed tomographic scan showed several osteoblastic and osteolytic lesions in vertebral bodies and the pelvis, compatible with metastases.’
    • ‘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.’
    • ‘Nevertheless, it is unusual among vertebrates for the pelvis to play an active role in inspiration.’
    • ‘It also puts the pelvis and spine into the neutral position and decreases stress on structures such as the intervertebral discs and nerve roots along the spine.’
    • ‘The bullet lodged near his pelvis and cannot be safely removed.’
    • ‘He lived only ten weeks after his diagnosis, the disease having already metastasized to his spine and bony pelvis, femur, skull, and tibia.’
    • ‘Key to skeletal balance, a sense of orientation and muscular coordination, the balanced pelvis forms a rim-like base for the spinal vertebrae, rib cage, shoulder girdle and head.’
    1. 1.1 The part of the abdomen including or enclosed by the pelvis.
      • ‘Although you should generally avoid X-rays during pregnancy, a lead apron that covers your pelvis and abdomen can shield your unborn baby.’
      • ‘Several surgical procedures of the head, neck, chest, abdomen, pelvis, back, and limbs are described.’
      • ‘The car has seven airbags, which include side curtain airbags and a large new side airbag for the front seats that protects the torso, abdomen and pelvis.’
      • ‘The results of a computed tomography of the chest, abdomen, and pelvis performed after surgery as well as the results of a bone marrow biopsy were negative.’
      • ‘Often women have an ultrasound examination of the pelvis and abdomen primarily to exclude gynaecological or pelvic pathology.’
      • ‘Computed tomographic scans of the chest, abdomen, and pelvis revealed hepatosplenomegaly and several small retroperitoneal lymph nodes.’
      • ‘Laparoscopy uses small incisions and telescope like instruments are used to view the pelvis and abdomen.’
      • ‘This misplaced tissue may be found on the ovaries, uterus, bowel, pelvis and abdomen.’
      • ‘Computed tomography scans of the chest, abdomen, and pelvis showed a nodular density in the lung but no other abnormalities.’
      • ‘One month postoperatively, however, a computed tomograhic scan of the chest, abdomen, and pelvis demonstrated a new pelvic mass.’
      • ‘A computed tomographic scan of the abdomen and the pelvis showed subtle lymph node enlargement in the retroperitoneum.’
      • ‘The nerves to the legs come from the spinal nerve roots that form the lumbar plexus and the sacral plexus, and which lie deep against the back of the abdomen and the pelvis.’
      • ‘After receipt of the pathology report, computed tomograms of the chest, abdomen, and pelvis showed no other lesions or evidence of metastatic disease.’
      • ‘A computed tomography of the chest, abdomen, and pelvis did not show any tumor masses or lymphadenopathy.’
      • ‘No other abnormalities were seen in the pelvis, abdomen, or chest cavity.’
      • ‘Rectal examination is essential if the medical history suggests a disorder in the lower abdomen, pelvis, lower rectal or anal region.’
      • ‘They are usually found in groups in different places throughout the body, including the neck, armpit, chest, abdomen, pelvis, and groin.’
      • ‘In July 2001, repeat computed tomographic scans of the neck, chest, abdomen, and pelvis were unchanged.’
      • ‘In the hours following treatment, your child may experience gastrointestinal upset if he or she received radiation treatment to the pelvis or abdomen.’
      • ‘Radiographic studies, including computed tomographic scans of the chest, abdomen, and pelvis, were consistent with acute appendicitis.’
  • 2The broadened top part of the ureter into which the kidney tubules drain.

    • ‘Reflux that extends into the renal pelvis and calyces and is associated with moderate ureteral, renal pelvic, and calyceal dilation.’
    • ‘The renal vein, renal pelvis, and ureter were free of tumor.’
    • ‘The most common site of an ectopic kidney is in the pelvis, rarely it can be too high and in the chest - a thoracic kidney.’
    • ‘No changes were found in the renal pelvis, ureter, and urinary bladder samples.’
    • ‘A fracture of the pelvis may tear the urethra and/or rupture the bladder.’
    • ‘As the stone drops from the renal pelvis, down the ureter to the ureterovesical junction, most patients have dysuria, and urinary urgency and frequency.’
    • ‘The etiologic workup, which was composed of an abdominal ultrasonographic examination and a computed tomography study, showed a cystic mass posterior to the uterus with a secondary dilatation of the renal pelvis and ureter.’
    • ‘Tumor infiltration of the renal pelvis and renal parenchyma was noted, along with extension through the renal capsule into the renal sinus and invasion into the main renal vein.’
    • ‘The nephrectomy specimen revealed a dilated renal pelvis and ureter.’
    • ‘The filtered material passes to the kidney pelvis, which connects to the ureter.’
    • ‘In our cases, both neoplasms were located in the lamina propria of the renal pelvis, lifting and denuding the urothelium.’
    • ‘Filtrate, at this point identical to urine, passes through the renal pelvis and into the ureter to the bladder where it is excreted.’
    • ‘This protocol applies to carcinomas of the urinary bladder, ureter, and renal pelvis.’
    • ‘The urine passes as droplets from tiny pores in the papillae into the renal pelvis and finally the ureter, which carries it to the urinary bladder.’
    • ‘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.’
    • ‘Neither the hilar structures nor the renal pelvis were involved.’
    • ‘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.’
    • ‘On the posterior abdominal wall, the left renal pelvis and kidney are seen.’
    • ‘An intravenous urogram revealed a filling defect in the right renal pelvis, and cystoscopy showed blood emerging from the right ureteric orifice only.’
    • ‘The renal pelvis, calyces, and renal vein were grossly uninvolved.’


Early 17th century: from Latin, literally ‘basin’.