aganglionosis

[ā-găng′glē-ə-nōsĭs]

n.

Absence of ganglion cells.
Congenital absence of the myenteric plexus ganglion cells.

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