- Physiology. the normal rhythmical contraction of the heart, during which the blood in the chambers is forced onward.Compare diastole.
- Classical Prosody. the shortening of a syllable regularly long.
Origin of systole
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- contraction of the heart, during which blood is pumped into the aorta and the arteries that lead to the lungsCompare diastole
C16: via Late Latin from Greek sustolē, from sustellein to contract; see systaltic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for presystole
Online Etymology Dictionary, © 2010 Douglas Harper
- The interval in the cardiac rhythm immediately preceding systole.
- The rhythmic contraction of the heart, especially of the ventricles, by which blood is driven through the aorta and pulmonary artery after each dilation or diastole.miocardia
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- The period during the normal beating of the heart in which the chambers of the heart, especially the ventricles, contract to force blood into the aorta and pulmonary artery. Compare diastole.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.