presystolen.
/ˌpriːˈsɪstəli/, U.S. /priˈsɪstəli/ Physiology and Medicine.
The interval of the cardiac cycle immediately preceding systole; late diastole.
ΘΚΠ
the world > life > the body > vascular system > circulation > pulsation > [noun] > intervals between
perisystole1659
peridiastole1842
presystole1869
1869 Lancet 23 Oct. 566/1 It was not known that the auricular contraction was confined to the presystole.
1884 Nature 4 Sept. 460/1 A study of the sphincters of the cardiac and other veins, with remarks on their hermetic occlusion during the presystole state.
1935 Amer. Heart Jrnl. 10 458 (caption) There is no presystolic element to the diastolic murmur... Presystole is free of sound.
2001 Chest (Nexis) 120 1960 Pericardial rub was considered to be a scratchy, grating, or creaking noise heard in systole, mid-diastole, and presystole or in any one of these phases.
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).
<
n.1869