- vernal equinox, March equinox, spring equinox - March 21
--1 is a kind of equinox
--1 is a part of spring, springtime; March, Mar
Antonyms: autumnal equinox, September equinox, fall equinox
--1 has particulars: Noruz, Nowruz, Nowrooz - vernal equinox - (astronomy) the equinoctial point that lies in the constellation of Pisces
--2 is a kind of equinoctial point, equinox