umbilical hernia definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A usually self-correcting hernia of the intestines in which protrusion occurs through the abdominal wall in the region of the navel.
umbilical hernia - Medical Definition
A hernia in which part of the intestine protrudes through the abdominal wall under the skin at the umbilicus. Also called exomphalos.