diastole

views updated Jun 27 2018

di·as·to·le / dīˈastl-ē/ • n. Physiol. the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood. Often contrasted with systole.DERIVATIVES: di·as·tol·ic / ˌdīəˈstälik/ adj.

diastole

views updated Jun 08 2018

diastole (dy-ast-ŏ-li) n. the period between two contractions of the heart, when the muscle of the heart relaxes and allows the chambers to fill with blood. See also blood pressure, systole.
diastolic (dy-ă-stol-ik) adj.

diastole

views updated May 23 2018

diastole The phase of a heart beat that occurs between two contractions of the heart, during which the heart muscles relax and the ventricles fill with blood. Compare systole. See blood pressure.

diastole

views updated Jun 11 2018

diastole (physiol.) dilatation. XVI. — late L. — Gr. diastolḗ separation, expansion, f. diastéllein, f. DIA- + stéllein place.

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diastole

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