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 diastole and is filled with blood during systole.

From Textbooks • Jun. 9, 2022

During diastole, the artery walls return to normal.

From Textbooks • Jun. 9, 2022

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

The velocity is not uniform in the large arteries, where at every heart beat there is a sudden increase followed by a decrease as the heart goes into diastole.

From Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. by Warfield, Louis Marshall