Also found in: Medical.


a.1.(Physiol.) Preceding the diastole of the heart; as, a prediastolic friction sound.
References in periodicals archive ?
In line with this study, to assess stress levels, we decided to record the participants' blood pressure levels by measuring and comparing their pre-systolic and prediastolic numbers to post-systolic and post-diastolic numbers after being exposed to a novel, friendly dog, prior to a midterm exam.