Diastole
/daɪˈæstəli/
Definition 1 of 1
Pro Tip 1/3Technical Term
Used in medical or biological contexts, not in casual conversation. 
In our physiology class, we learned how diastole functions in the cardiac cycle.
Pro Tip 2/3Opposite Phase
Helps describe one of the two main heart phases, the other being 'systole'. 
Diastole is when the heart rests, whereas systole is when the heart contracts.
Pro Tip 3/3Blood Pressure
Relevant in discussing blood pressure, as in 'diastolic pressure'. 
The doctor said my diastolic pressure is lower than average.