Bible Dictionaries
Perisystole

Webster's Dictionary

(n.) The interval between the diastole and systole of the heart. It is perceptible only in the dying.

Bibliography Information
Webster, Noah. Entry for 'Perisystole'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/perisystole.html. 1828.