constriction ring

constriction ring definition - medical

constriction ring

noun
True spastic stricture of the uterine cavity caused by a zone of muscle undergoing tetanic contraction and forming a tight constriction about some part of the fetus.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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