'Perisystole' definitions:

Definition of 'Perisystole'

From: GCIDE

Perisystole \Per`i*sys"to*le\, n. [Pref. peri- + systole: cf. F. p['e]risystole.] (Physiol.) The interval between the diastole and systole of the heart. It is perceptible only in the dying. [1913 Webster]