• Diastole

    Pronunciation

    • IPA: /'daɪæstÉ’li/

    Origin

    From Ancient Greek διαστολή (diastolē, "separation, drawing asunder"), from διά (dia, "apart") + στέλλειν (stellein, "send").

    Full definition of diastole

    Noun

    diastole

    (usually uncountable; plural diastoles)
    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) The lengthening of a vowel or syllable beyond its typical length.

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