Noun: vernal equinox 'vur-n(u)l 'ee-kwu,nóks
- (astronomy) the equinoctial point that lies in the constellation of Pisces
"The vernal equinox marks the beginning of spring in the Northern Hemisphere"
- The spring equinox in the Northern Hemisphere, occurring around March 20 or 21, when day and night are of equal length
"The vernal equinox marks the beginning of spring";
- March equinox, spring equinox
Derived forms: vernal equinoxes
Type of: equinoctial point, equinox
Part of: Mar, March, spring, springtime
Encyclopedia: Vernal equinox