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Definition of Diastolic blood pressure
1. Noun. (physiology) The lowest pressure within the bloodstream, occurring between heart beats, because of a diastole. ¹
¹ Source: wiktionary.com
Medical Definition of Diastolic blood pressure
1. The pressure exerted on the walls of the arteries when the heart is in the relaxation phase (diastole). Considered abnormally elevated if consistently over 90 mmhg. (27 Sep 1997)