from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Congenital aganglionic megacolon, a disorder in which the bowel is obstructed by an aganglionic section of bowel and the colon becomes enlarged.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. congenital condition in which the colon does not have the normal network of nerves; there is little urge to defecate so the feces accumulate and cause megacolon
After Harald Hirschsprung (1830–1916), Danish physician who first described it. (Wiktionary)