Definition of Diastole

1. Noun. The widening of the chambers of the heart between two contractions when the chambers fill with blood.

Generic synonyms: Beat, Heartbeat, Pulsation, Pulse
Derivative terms: Diastolic

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:

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)

Diastole Pictures

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Lexicographical Neighbors of Diastole

diastole (current term)
diastolic afterpotential
diastolic blood pressure
diastolic murmur
diastolic pressure
diastolic shock
diastolic thrill
diastrophic dwarfism

Literary usage of Diastole

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Text-book of physiology: For Medical Students and Physicians by William Henry Howell (1907)
"Ventricular diastole and pause = 0.483 " Auricular diastole and pause = 0.762 to 0.692 " Auricular systole =0.1 to 0.17 " Einthoven and Geluk, ..."

2. The London Medical Gazette (1831)
"into the ventricle, and its course '* is abruptly arrested by the completion of the diastole," &c. Therefore, as a sound is produced at the termination of ..."

3. An American Text-book of Physiology by William Henry Howell (1900)
"Relative Lengths of the Ventricular Systole and diastole.—An important question is whether or no there is any fixed relation between the time required for a ..."

4. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1907)
"The contractility is destroyed by each contraction and recovers slowly during diastole. After a short diastole the contractility does not fully return and a ..."

5. An Analytical Compendium of the Various Branches of Medical Science: For the by John Neill, Francis Gurney Smith (1852)
"The contraction of all the cavities is followed by their dilatation; the contraction is called the systole; the dilatation, the diastole. ..."

6. Journal of Anatomy and Physiology (1869)
"THE existence of an active diastole" of the ventricles of the heart following ... The object of the present article is to shew that this active diastole' is ..."

7. A Text-book of Human Physiology by Robert Tigerstedt (1906)
"On the average the length of ventricular diastole in man may be estimated ... FILLING OF THE HEART IN diastole The most important factor in the filling of ..."

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