cycle

1. Periodic, repetitive sequence of events in a process that plays out over time (such as a life cycle), or keeps on going indefinitely (such as a cash cycle).

2. Periodic, repetitive fluctuations from a constant average (mean) or trend line in a time series data observed over an extended period (typically more than one year). Cycles within a year are called seasonal patterns or variations.

3. Single execution of a complete set of operations in a process, from beginning to end.