systaltic

[si-stawl-tik, -stal-] /sɪˈstɔl tɪk, -ˈstæl-/
adjective, Physiology
1.
rhythmically contracting.
2.
of the nature of contraction.
3.
characterized by alternate contraction and dilation, as the action of the heart.
Origin
1670-80; < Late Latin systalticus < Greek systaltikós, equivalent to systalt(ós) contracted, verbid of systéllein to put together (sy- sy- + stal-, variant stem of stéllein to place + -tos verbid suffix) + -ikos -ic
British Dictionary definitions for systaltic

systaltic

/sɪˈstæltɪk/
adjective
1.
(esp of the action of the heart) of, relating to, or characterized by alternate contractions and dilations; pulsating
Word Origin
C17: from Late Latin systalticus, from Greek sustaltikos, from sustellein to contract, from syn- + stellein to place
systaltic in Medicine

systaltic sys·tal·tic (sĭ-stôl'tĭk, -stāl'-)
adj.
Alternately contracting and dilating, as the heart; pulsating.