Origin of diastoleLate Latin from Classical Greek diastol?, expansion, dilatation from diastellein, to separate, dilate from dia-, apart + stellein, to put: see local
- Physiology The normal rhythmically occurring relaxation and dilatation of the heart chambers, especially the ventricles, during which they fill with blood.
- The lengthening of a normally short syllable in Greek and Latin verse.
Origin of diastoleGreek diastolē dilation, separation from diastellein to expand dia- apart ; see dia- . stellein to place, send ; see stel- in Indo-European roots.
(usually uncountable, plural diastoles)
From Ancient Greek διαστολή (diastolē, “separation, drawing asunder”), from διά (dia, “apart”) + στέλλειν (stellein, “send”).