Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “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)
Focus on the pronunciation of diastolic

Word of the Day

well in (with)

to have a good relationship with someone in which they like you and from which you get an advantage

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More