what is the cisterna chyli
Medical Definition of CISTERNA CHYLI. : a dilated lymph channel usually opposite the first and second lumbar vertebrae and marking the beginning of the thoracic duct.What made you want to look up cisterna chyli?edical Definition of CISTERNA CHYLI. : a dilated lymph channel usually opposite the first and second lumbar vertebrae and marking the beginning of the thoracic duct. What made you want to look up cisterna chyli?