Systole definitions

sĭs'tə-lē
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.
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The usual rhythmic contraction of the heart, esp. of the ventricles, following each dilatation (diastole), during which the blood is driven onward from the chambers.
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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.
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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.
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(physiology) The rhythmic contraction of the heart, by which blood is driven through the arteries.
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(prosody) A shortening of a naturally long vowel.
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Origin of systole

From New Latin, from Ancient Greek συστολή (sustolÄ“), from συστέλλειν (sustellein, “to contract"), from σύν (sun, “together") + στέλλειν (stellein, “send").