the time when the sun crosses the plane of the earth's equator, making night and day of approximately equal length all over the earth and occurring about March 21 (vernal equinox or spring equinox) and September 22 (autumnal equinox)
Equinox - Wikipedia
An equinox is an astronomical event in which the plane of Earth's equator passes
through the center of the Sun, which occurs twice each year, around 20 March ... More »
equinox | Define equinox at Dictionary.com
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Equinox definition, the time when the sun crosses the plane of the earth's equator
, making night and day of approximately equal length all over the earth and ...
Define equinox: a day when day and night are the same length.
Define equinox. equinox synonyms, equinox pronunciation, equinox translation,
English dictionary definition of equinox. equinox celestial sphere showing the ...
The equinox is one of the two times in a year when the sun crosses the plane of
the earth's equator, and day and night are of equal length. “During the spring ...
After completing this lesson, you will be able to explain what the equinox is,
describe the types of equinox, and what is special about the path of...
the time or date (twice each year) at which the sun cross... Meaning,
pronunciation, example sentences, and more from Oxford Dictionaries.
The equinox is defined as a day that occurs twice per year when the sun crosses
the equator and the night and day are the same length. A day in March that is ...