IPA: /ˌpɪə.riˈɒd.ɪ.sɪ.ti/
KK: /pɪrɪˈɒdɪsɪti/
The quality of occurring at regular intervals or the state of being repeated over time.
The periodicity of the seasons affects many aspects of nature.
Periodicity → It is formed from "periodos" (from Greek, meaning a cycle or recurring sequence) and the suffix "-ity" (meaning the state or quality of). The word "periodicity" refers to the quality of occurring at regular intervals or cycles.
Think of a cycle or recurring sequence ('periodos') to remember that 'periodicity' means the quality of happening regularly.