Question

what is periodic event?

Answer 1

the periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding. cycle, oscillation. a single complete execution of a periodicallyrepeated phenomenon. repeat, repetition. an event that repeats.

Answer 2

$\textbf{\large{Answer -}}$

Periodic event is an event which occurs at regular intervals.

It includes natural event or social event also.

For example, movement of birds is a periodic event.

Birds move from one place to other for a fixed duration of time.