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English definition of “diastolic”

diastolic

adjective     /daɪ.əˈstɒl.ɪk/ US  /ˌdɑɪ.əˈstɑl.ɪk/ specialized
relating to the diastole (= the period when the main chamber of the heart is relaxed and filling with blood): diastolic blood pressureThe circulatory system and blood
(Definition of diastolic adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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