The time period when the heart is in a state of relaxation and dilatation (expansion). The final letter in "diastole" is pronounced as a long "e" as in "lee." The adjective for diastole is diastolic. The diastolic pressure is specifically the minimum arterial pressure during relaxation and dilatation of the ventricles [..]

(dy-ass-toh-lee) The stage of the heart cycle in which the heart muscle is relaxed, allowing the chambers to fill with blood.

The dilation of the ventricles of the heart

1570s, from medical Latin diastole, from Greek diastole "drawing asunder, dilation," from diastellein, from dia- "through, thoroughly, entirely" (see dia-) + stellein "to set [..]

Relaxation of the heart muscle.

(di-as´tuo-le) The sequence of the cardiac cycle during which a heart chamber wall is relaxed. diencephalon

Phase of the cardiac cycle during which a heart chamber wall is relaxed; also diastolic pressure. diastolic pressure

Relaxation, as in relaxation of the ventricles (ventricular diastole).

(n) the widening of the chambers of the heart between two contractions when the chambers fill with blood

The relaxation phase of the normal heart cycle.

Diastole refers to the filling phase of the cardiac cycle. Diastole occurs when heart muscle relaxes.

Diastole is the portion of the heart's pumping cycle during which the muscle relaxes to let the heart fill. The portion of the cycle when the heart empties is called systole.

Post-systolic Relaxation of the Heart, especially the Heart Ventricles.

Post-systolic relaxation of the HEART, especially the HEART VENTRICLES.

The first half of a heartbeat, during which the upper chambers of the heart (atria) contract and send blood into the lower chambers (ventricles).

The period of time when the heart is relaxing, filling with blood and getting ready to contract again