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Definition of Diastole
1. Noun. The widening of the chambers of the heart between two contractions when the chambers fill with blood.
Definition of Diastole
1. n. The rhythmical expansion or dilatation of the heart and arteries; -- correlative to systole, or contraction.
Definition of Diastole
1. Noun. (physiology) The relaxation and dilation of the heart chambers, between contractions, during which they fill with blood. ¹
2. Noun. (prosody) To lengthen a vowel or syllable beyond its typical length. ¹
¹ Source: wiktionary.com
Definition of Diastole
1. the normal rhythmical dilation of the heart [n -S]
Medical Definition of Diastole
1. The time, in between ventricular contractions (systole), at which ventricular filling occurs. (27 Sep 1997)