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portal canal in Medicine

portal canal

n.
  1. Any of the various spaces in the liver that contain connective tissue and the branchings of the bile ducts, portal vein, hepatic artery, nerves, and lymphatics.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.