Definition of hilus in English:



  • An indentation in the surface of a kidney, spleen, or other organ, where blood vessels, ducts, nerve fibres, etc. enter or leave it.

    • ‘It was partially cavitary in the midportion of the specimen and extended into the hilus and renal vein.’
    • ‘A laparotomy revealed an unresectable tumor encasing the hepatic arteries, portal vein, and common bile duct in the hepatic hilus.’
    • ‘At the center of the concave side, where the ureters and veins issue and arterial vessels and nerves usually enter, is the hilus.’
    • ‘The arteries enter at the hilus and are carried in, and branch with, the trabeculae.’
    • ‘The hepatic artery, portal vein, lymphatics, and nerves enter the liver through the hilus.’


Mid 19th century: modern Latin, alteration of hilum.