IPA: //ˌiːkwɪˈnɒkʃəl//
KK: /ɪˈkwɪnɒkʃəl/
Connected to the time of year when day and night are of equal length, or to the regions near the equator.
The equinoctial storms often bring heavy rain and strong winds.
A strong storm with wind and rain that happens around the time of the equinox.
The sailors were warned about the equinoctial that could hit the coast.
Equinoctial → It is formed from "aequus" (meaning equal) and "nox" (meaning night). The term refers to the time of year when day and night are of equal length, specifically during the equinoxes.
Think of 'equal' ('aequus') and 'night' ('nox') to remember that 'equinoctial' relates to the time when day and night are equal.