systole

noun

sys·​to·​le ˈsi-stə-(ˌ)lē How to pronounce systole (audio)
: a rhythmically recurrent contraction
especially : the contraction of the heart by which the blood is forced out of the chambers and into the aorta and pulmonary artery compare diastole
systolic adjective

Example Sentences

Recent Examples on the Web The researchers found that during systole, people tended to perceive fearful faces more intensely. Quanta Magazine, 6 July 2020 Instead, the participants responded more fearfully to all the shapes that were presented at systole. Quanta Magazine, 6 July 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'systole.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

Etymology

Greek systolē, from systellein to contract, from syn- + stellein to send

First Known Use

1565, in the meaning defined above

Time Traveler
The first known use of systole was in 1565

Dictionary Entries Near systole

Cite this Entry

“Systole.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/systole. Accessed 8 Dec. 2022.

Kids Definition

systole

noun
sys·​to·​le ˈsis-tə-lē How to pronounce systole (audio)
: the contraction of the heart by which the blood is forced onward and the circulation kept up compare diastole

Medical Definition

systole

noun
sys·​to·​le ˈsis-tə-(ˌ)lē How to pronounce systole (audio)
: the contraction of the heart by which the blood is forced onward and the circulation kept up compare diastole sense 1
systolic adjective

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