equinoctial
adjective/ˌiːkwɪˈnɒkʃl/, /ˌekwɪˈnɒkʃl/
/ˌiːkwɪˈnɑːkʃl/, /ˌekwɪˈnɑːkʃl/
- connected with an equinoxWord Originlate Middle English (in the sense ‘relating to equal periods of day and night’): via Old French from Latin aequinoctialis, from aequinoctium, from aequi- ‘equal’ + nox, noct- ‘night’.
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equinoctial