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diastole

noun

di·​as·​to·​le dī-ˈa-stə-(ˌ)lē How to pronounce diastole (audio)
: a rhythmically recurrent expansion
especially : the relaxation and dilation of the chambers of the heart and especially the ventricles during which they fill with blood compare systole
diastolic adjective

Example Sentences

Recent Examples on the Web For us this was diastole; the condition of the heart when it's fully dilated with blood just before it's ejected with a heart contraction to the body. Jennifer Nalewicki, Smithsonian, 21 July 2017 For us this was diastole; the condition of the heart when it's fully dilated with blood just before it's ejected with a heart contraction to the body. Jennifer Nalewicki, Smithsonian, 21 July 2017 For us this was diastole; the condition of the heart when it's fully dilated with blood just before it's ejected with a heart contraction to the body. Jennifer Nalewicki, Smithsonian, 21 July 2017 For us this was diastole; the condition of the heart when it's fully dilated with blood just before it's ejected with a heart contraction to the body. Jennifer Nalewicki, Smithsonian, 21 July 2017 For us this was diastole; the condition of the heart when it's fully dilated with blood just before it's ejected with a heart contraction to the body. Jennifer Nalewicki, Smithsonian, 21 July 2017 For us this was diastole; the condition of the heart when it's fully dilated with blood just before it's ejected with a heart contraction to the body. Jennifer Nalewicki, Smithsonian, 21 July 2017 For us this was diastole Jennifer Nalewicki, Smithsonian, 21 July 2017 For us this was diastole; the condition of the heart when it's fully dilated with blood just before it's ejected with a heart contraction to the body. Jennifer Nalewicki, Smithsonian, 22 July 2017 See More

Word History

Etymology

Greek diastolē dilatation, from diastellein to expand, from dia- + stellein to prepare, send

First Known Use

circa 1578, in the meaning defined above

Time Traveler
The first known use of diastole was circa 1578

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