equinoctial year


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Noun1.equinoctial year - the time for the earth to make one revolution around the sun, measured between two vernal equinoxesequinoctial year - the time for the earth to make one revolution around the sun, measured between two vernal equinoxes
year - the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun; "a Martian year takes 687 of our days"