Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
the phase of the cardiac cycle in which the heart relaxes between contractions; specifically, the period when the two ventricles are dilated by the blood flowing into them. See also blood pressure and heart. adj., adj diastol´ic.
electrical diastole that time during which the cell rests; it is represented by phase 4 of the action potential.
period from end of T wave to beginning of next Q wave.
e·lec·tri·cal di·as·to·le(ĕ-lek'tri-kăl dī-as'tŏ-lē)
Period from end of T wave to beginning of next Q wave.