plural of operating cycle

plural of ovarian cycle

plural of news cycle

plural of solar cycle

(astronomy) The nearly periodic 11-year change in the Sun's activity, measured from a minimum of activity to the next.

The reporting of a particular media story, from the first instance to the last, often including reporting on public and other reactions to the earlier reports.

The natural cycle of evaporation of water from the oceans etc, and subsequent condensation and precipitation as rain and snow

(biology) A form of viral reproduction involving the fusion of the nucleic acid of a bacteriophage with that of a host, followed by proliferation of the resulting prophage

(biology) The normal process of viral reproduction involving penetration of the cell membrane, nucleic acid synthesis and lysis of the host cell

Any four-stroke cycle, such as the Otto cycle, for an internal combustion engine.