cyclic
Pronunciation: /ˈsʌɪklɪk, ˈsɪk-/
adjective
- 1occurring in cycles; regularly repeated: the cyclic pattern of the last two decades
- Mathematics (of a group) having the property that each element of the group can be expressed as a power of one particular element.
- denoting a musical or literary composition with a recurrent theme or structural device.
- 2 Mathematics relating to a circle or other closed curve.
- Geometry (of a polygon) having all its vertices lying on a circle.

Origin:
late 18th century: from French cyclique or Latin cyclicus, from Greek kuklikos, from kuklos 'circle'