Synonym of pen picture

plural of portal triad

(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.

The process of making something portable.

Relating to the portal vein

Alternative form of preportion

A movable crib for an infant.

A movable cot for an infant.

(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.

(historical) A pulley to save the ropes of steam ploughs from friction.