the first portion of the colon, beginning at the cecum in the lower right abdominal cavity and continuing upward along the right posterior abdominal wall to approximately the lower ribs.
Origin of ascending colon
First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
The part of the colon between the ileocecal orifice and the right colic flexure.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.