Possible Definitions:
1. Cycle (n.) An imaginary circle or orbit in the heavens; one of the celestial spheres.
2. Cycle (n.) An interval of time in which a certain succession of events or phenomena is completed, and then returns again and again, uniformly and continually in the same order; a periodical space of time marked by the recurrence of something peculiar; as, the cycle of the seasons, or of the year.
3. Cycle (n.) An age; a long period of time.
4. Cycle (n.) An orderly list for a given time; a calendar.
5. Cycle (n.) The circle of subjects connected with the exploits of the hero or heroes of some particular period which have served as a popular theme for poetry, as the legend of Arthur and the knights of the Round Table, and that of Charlemagne and his paladins.
6. Cycle (n.) One entire round in a circle or a spire; as, a cycle or set of leaves.
7. Cycle (n.) A bicycle or tricycle, or other light velocipede.
8. Cycle (v. i.) To pass through a cycle of changes; to recur in cycles.
9. Cycle (v. i.) To ride a bicycle, tricycle, or other form of cycle.
10. Cycle (n.) A series of operations in which heat is imparted to (or taken away from) a working substance which by its expansion gives up a part of its internal energy in the form of mechanical work (or being compressed increases its internal energy) and is again brought back to its original state.
11. Cycle (n.) A complete positive and negative wave of an alternating current; one period. The number of cycles (per second) is a measure of the frequency of an alternating current.
