Definition of vernal equinox in English:

vernal equinox


  • 1The equinox in spring, on about March 20 in the northern hemisphere and September 22 in the southern hemisphere.

    • ‘The day taken to be the invariable date of the vernal equinox is March 21.’
    • ‘It falls on the vernal equinox and marks the beginning of the Persian new year.’
    • ‘A fixed overhang designed for optimal shading on the autumnal equinox casts the same shadow on the vernal equinox.’
    • ‘Western Christians, therefore, observe the date of the vernal equinox on March 21 according to the Gregorian Calendar.’
    • ‘In theory, Easter falls on the Sunday after the first full moon following the vernal equinox.’
    1. 1.1Astronomy The equinox in March.
      Also called spring equinox
    2. 1.2Astronomy
      another term for First Point of Aries (see Aries)
      • ‘The tides are especially high right now, as we get closer to Samhain and the vernal equinox.’
      • ‘According to the website, Easter falls on the first Sunday following the first ecclesiastical full moon that occurs on or after the day of the vernal equinox.’


vernal equinox