The Collaborative International Dictionary
Systaltic
Systaltic \Sys*tal"tic\, a. [L. systalticus drawing together, Gr. ?, from ? to draw together. Cf. Sustaltic, Systole.] (Physiol.) Capable of, or taking place by, alternate contraction and dilatation; as, the systaltic action of the heart.
Douglas Harper's Etymology Dictionary
systaltic
"alternately contracting and dilating," 1670s, from Late Latin systalticus, from Greek systaltikos "drawing together," from stem of systellein, related to systole (see systole).
Wiktionary
systaltic
a. (context biology English) Capable of, or taking place by, alternate contraction and dilatation.