pre-ejection period

Medical Dictionary

pre-ejection period pre-e·jec·tion period (prē'ĭ-jěk'shən)
The interval in the electrocardiogram between the onset of the QRS complex and cardiac ejection.

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