1794, from French cyclique (16c.), from Latin cyclicus, from Greek kyklikos "moving in a circle," from kyklos (see cycle (n.)).
cyclic cy·clic (sī'klĭk, sĭk'lĭk) or cy·cli·cal (sī'klĭ-kəl, sĭk'lĭ-kəl)
adj.
Relating to or characterized by cycles.
Recurring or moving in cycles.
Relating to chemical compounds having atoms arranged in a ring or closed-chain structure.