(anatomy) Of or relating to a porta, especially the porta of the liver.

A ghost town in California. / A town in Georgia, United States. / A municipality of North Dakota. / A surname.

plural of portal site

(anatomy) A distinctive component of a hepatic lobule, found running along each of the lobule's corners, that consists of branches of the hepatic artery proper, hepatic portal vein and bile ducts, as well as other structures.

plural of portal triad

Relating to the portal vein

(computer graphics) An algorithm for determining the visibility of objects in a three-dimensional world, based on partitioning the space into polygonal, generally convex regions that can be used to form generalizations about the visibility of objects within those regions.

A census-designated place in Mariposa County, California, United States.

(computing) A web page shown to new users of an access point before they can access before the greater Internet.

(pathology) Increased blood pressure in the hepatic portal system (the system of veins comprising the hepatic portal vein and its tributaries).