equinox

n either of the two times in the year (around 21 March and 22 September) when the sun crosses the equator and day and night are of equal length 春分; 秋分: spring/vernal equinox 春分 * autumnal equinox 秋分. Cf 参看 solstice.

equable, equably, equal, equality, equalization, equalisation, equalize, equalise, equally, equanimity, equate, equation, equator, equatorial, equerry, equestrian, equi-, equidistant, equilateral, equilibrium, equine, equinoctial, equip, equip with, equipment, equipoise, equitable, equitably, equity, equivalence, equivalent, equivocal, equivocate, equivocation, ER, era, eradicate, eradication, eradicator, erasability, erase, eraser,