equinoctial
/ˌikwəˈnɑkʃəl/
adjective
- Relating to an equinox (the two times each year when day and night are of equal length).
- The equinoctial tides are especially high around March and September.
- The equinoctial point marks where the sun crosses the celestial equator.
- Many ancient cultures held festivals on the equinoctial dates.
- Relating to the region near the equator, where day and night are nearly equal all year.
- Equinoctial climates are typically hot and humid.
- The equinoctial regions experience very little variation in daylight hours.
- Sailors used the equinoctial line as a reference for navigation.
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