Definition of hilus in English:

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Pronunciation: /ˈhīləs/

noun (plural hili /ˈhīlī/ /-lē/)

An indentation in the surface of a kidney, spleen, or other organ, where blood vessels, ducts, nerve fibers, etc., enter or leave it.
Example sentences
  • A laparotomy revealed an unresectable tumor encasing the hepatic arteries, portal vein, and common bile duct in the hepatic hilus.
  • The arteries enter at the hilus and are carried in, and branch with, the trabeculae.
  • At the center of the concave side, where the ureters and veins issue and arterial vessels and nerves usually enter, is the hilus.


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

For editors and proofreaders

Syllabification: hi·lus

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