diastole

/daɪˈæstəli/

From Ancient Greek διαστολή (diastolḗ, “separation, drawing asunder”), from διά (diá, “apart”) + στέλλειν (stéllein, “send”).

1(chiefly uncountable, physiology) The phase or process of relaxation and dilation of the heart chambers, between contractions, during which they fill with blood; an instance of the process.
2(uncountable, prosody, rhetoric) The lengthening of a vowel or syllable beyond its typical length.
3(Greek grammar) The hypodiastole, a textual