diastole Hear it!

diastole Definition

di·as·tole (dī astə lē′)

noun

the usual rhythmic dilatation of the heart, esp. of the ventricles, following each contraction (systole), during which the heart muscle relaxes and the chambers fill with blood

Etymology: LL < Gr diastolē, expansion, dilatation < diastellein, to separate, dilate < dia-, apart + stellein, to put: see locus

diastole Related Forms

di′a·stolic (dī′ə stälik) adjective

diastole Usage Examples

Adjective modifier

ventricular: The " dup " sound is caused by the closing of the aortic and pulmonary valves at the beginning of ventricular diastole.

Browse dictionary entries near diastole

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