systole
noun
sys·to·le ˈsi-stə-(ˌ)lē 
: 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
si-ˈstä-lik
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
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 Word History
Etymology
Greek systolē, from systellein to contract, from syn- + stellein to send
First Known Use
1565, in the meaning defined above
Medical Definition
systole
noun
sys·to·le ˈsis-tə-(ˌ)lē
: the contraction of the heart by which the blood is forced onward and the circulation kept up compare diastole sense 1