diastole

American  

[dahy-as-tl-ee, -tl-ee] / daɪˈæs tlˌi, -tl i /

noun

1. Physiology. the normal rhythmical dilatation of the heart during which the chambers are filling with blood.

2. Prosody. the lengthening of a syllable regularly short, especially before a pause or at the ictus.

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diastole British  

/ ˌdaɪəˈstɒlɪk, daɪˈæstəlɪ /

noun

1. the dilatation of the chambers of the heart that follows each contraction, during which they refill with blood Compare systole

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diastole Scientific  

/ dī-ăs′tə-lē /

1. The period during the normal beating of the heart in which the chambers of the heart dilate and fill with blood. Diastole of the atria occurs before diastole of the ventricles.

2. Compare systole

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Other Word Forms

• diastolic adjective

Etymology

Origin of diastole

1570–80; < Late Latin diastolē < Greek diastolḗ a putting asunder, dilation, lengthening; compare diastéllein to set apart, equivalent to dia- dia- + stéllein to put, place

Example Sentences

The heart contracts to pump blood through the body during systole and is filled with blood during diastole.

From Textbooks • Jun. 9, 2022

During systole, when new blood is entering the arteries, the artery walls stretch to accommodate the increase of pressure of the extra blood; during diastole, the walls return to normal because of their elastic properties.

From Textbooks • Jun. 9, 2022

One of the primary factors to consider is filling time, or the duration of ventricular diastole during which filling occurs.

From Textbooks • Jun. 19, 2013

Figure 19.27 Overview of the Cardiac Cycle The cardiac cycle begins with atrial systole and progresses to ventricular systole, atrial diastole, and ventricular diastole, when the cycle begins again.

From Textbooks • Jun. 19, 2013

It arrests the heart in diastole, the organ afterwards contracts slowly—possibly in rapid rigor mortis.

From New, Old, and Forgotten Remedies: Papers by Many Writers by Anshutz, Edward Pollock