cisterna chyli
/sɪsˌtəːnə ˈkʌɪli/Anatomy
noun
The dilated lower end of the thoracic duct, between the aorta and the first and second lumbar vertebrae, in which lymph from the lower part of the body collects.
Origin
Early 18th century; earliest use found in James Drake (d. 1707), political and medical writer. From scientific Latin cisterna chyli from classical Latin cisterna + chȳlī, genitive singular of chȳlus.