equinoctial

adjective

1. pertaining to an equinox or the equinoxes, or to the equality of day and night.
2. pertaining to the celestial equator.
3. occurring at or about the time of an equinox.
4. Botany. (of a flower) opening regularly at a certain hour.

noun

5. celestial equator.
6. equinoctial storm.

adjective

1. relating to or occurring at either or both equinoxes
2. (of a plant) having flowers that open and close at specific regular times
3. astronomy of or relating to the celestial equator

noun

4. a storm or gale at or near an equinox
5. another name for celestial equator

Adjective

1. Relating to an equinox.
2. Relating to the celestial equator.

Noun

1. See celestial equator.