Hirschsprung's disease

Medical Dictionary

Hirschsprung's disease Hirsch·sprung's disease (hērsh'sprŭngz', -prungz')
n.
See congenital megacolon.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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WordNet
hirschsprung's disease

noun
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 
WordNet® 3.0, © 2006 by Princeton University.
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