periodicity

Definition

The quality of occurring at regular, recurring time intervals.

Etymology

Derived from the Greek word 'periodos' (a circuit or cycle) via the French 'périodicité'. It combines 'period' with the suffix '-icity' to denote the state or quality of being cyclic.

In the news

The article uses the term to describe how the hexagon's features rotate around Saturn with a remarkably steady and reliable timing. This helps scientists establish that the storm system is a stable, persistent structure rather than a random weather event.

Saturn has a six-sided storm system wider than Earth, and scientists still cannot fully explain why its perfect shape refuses to disappear

Space Daily

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