You searched for: “equinoctial
1. A reference to a state of equal day and night.
2. The period or point of the equinox.
3. The celestial equator: so called because, when the sun is on it, the nights and days are of equal length in all parts of the world.
This entry is located in the following units: equ-, equi- (page 3) nocti-, noct-, nox (page 1)