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Eisenmenger's complex

[ī′zən-mĕng′ərz]
n.
  1. A defect of the interventricular septum with pulmonary hypertension and a consequent right-to-left shunt through the defect.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.