interval

(in’ter-val) [L. in’ter between + val'lum rampart]. The space between two objects or parts; the lapse of time between two recurrences or paroxysms. a.-c. i., the interval between See msus- "See Between Same as inter- the auricular and carotid waves in the tracing of the, jugular pulse. a trio carotid i., auriculocarotid i., the time between the beginning of the auricular and the beginning of the carotid waves in a jugular pulse-tracing. Called inter systolic period. c.-a. i., the cardio-arterial interval. cardio arterial i., the time between the apex-beat and arterial pulsation. focal i., the distance from the anterior to the posterior focal point. pa ive i., the time when neither the auricles nor ventricles of the heart are expanding or contracting. post sphygmic i., the time between the beginning of dilatation of the ventricle of the heart and the opening of the auriculoventricular valves. pre sphygmic i., the time between the beginning of contraction of the ventricles of the heart and the raising of the arterial valves. Sturm’si. Same as focal i.