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portal vein

American  

noun

Anatomy.

  1. the large vein conveying blood to the liver from the veins of the stomach, intestine, spleen, and pancreas.

portal vein British  

noun

  1. any vein connecting two capillary networks, esp in the liver ( hepatic portal vein )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of portal vein

First recorded in 1835–45

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.