zona hemorrhoidalis
(hĕm′ə-roi-dā′lĭs)- The part of the anal canal that contains the rectal venous plexus.annulus hemorrhoidalis
Show More
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.