subaortic stenosis

[sŭb′ā-ôrtĭk]

n.

Narrowing of the outflow tract of the left ventricle caused by an obstruction shortly below the aortic valve.

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