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The rhythmic contraction of the heart, especially of the ventricles, by which blood is driven through the aorta and pulmonary artery after each dilation or diastole.
[Greek sustolē, contraction, from sustellein, to contract; see systaltic.]
sys·tol′ic (sĭ-stŏl′ĭk) adj.
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|Adj.||1.||systolic - of or relating to a systole or happening during a systole|