Definition of xiphisternum in US English:



  • The lowest part of the sternum; the xiphoid process.

    • ‘At 28 weeks, the fundal height lies at the lower third of the distance between the xiphisternum and umbilicus.’
    • ‘You perform the sternotomy from the sternal notch to the xiphisternum.’
    • ‘The xiphoid process, also known as the xiphisternum is a small cartilaginous extension to the lower part of the sternum.’
    • ‘Incorrect placement of the hands is more likely to cause rib fractures, and if the hands are placed too low over the xiphisternum this may increase the risk of injury to the abdominal organs.’
    • ‘In brief, a small incision was made on the skin below the xiphisternum towards the left from the midline.’


Mid 19th century: from Greek xiphos ‘sword’ + sternum.