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cardiac valve

n.
  1. Any of the valves regulating the flow of blood through and from the heart, consisting of the aortic valve, the left and right atrioventricular valves, and the pulmonary valve.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.