1. relating to or denoting the phase of the heartbeat when the heart muscle relaxes and the chambers fill with blood
Usage: medical/physiological term; commonly used in blood pressure measurements

Examples

• The doctor recorded a diastolic pressure of 80 millimeters of mercury.
• During the diastolic phase, blood flows into the ventricles.
• A normal diastolic reading is typically below 80 mmHg.
• The diastolic measurement is the lower number in a blood pressure reading.
• High diastolic pressure can indicate cardiovascular problems.