Definition of systole noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈsɪstəli//
; NAmE NAmE//ˈsɪstəli//
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the stage of the heart’s rhythm when the heart pumps blood compare diastole Word Origin late 16th cent.: via late Latin from Greek sustolē, from sustellein ‘to contract’.
See the Oxford Advanced American Dictionary entry: systole