equinox

1. One of two times in the year (one in March and the other in September) when the length of the day and the night are equal, which occurs when the sun is directly overhead at the equator; this marks the beginning of spring in one hemisphere and autumn in the other.

   Äquinoktium, Tagnachtgleiche, Tagundnachtgleiche

   равноде́нствиеravnodénstvije

   рівноде́нняrivnodénnja

   either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length

2. (also, figuratively)The circumstance of a twenty-four hour time period having the day and night of equal length.

3. One of the two points in space where the apparent path of the Sun intersects with the equatorial plane of the Earth.

   (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic

4. (obsolete, rare)A gale (“very strong wind”) once thought to occur more frequently around the time of an equinox (sense 1), now known to be a misconception; an equinoctial gale.

5. (obsolete)A celestial equator (“great circle on the celestial sphere, coincident with the plane of the Earth's equator (the equatorial plane)”); also, the Earth's equator.

1. No heat or cold lasts beyond the equinox.

   deWeder Hitze noch Kälte dauerten über die Tagundnachtgleiche hinaus.

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2. Did you do anything to celebrate spring equinox?

   ruТы как-нибудь отмечал весеннее равноденствие?

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3. Solstices and equinoxes mark the beginnings of the seasons of the year.

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4. The equinox is the day when day and night are the same length.

   ruДень равноденствия - это день, когда продолжительность дня и ночи одинаковая.

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5. What is the equinox?

   ruЧто такое равноденствие?

   deWas ist das Äquinoktium?

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regular

• equinoctesplural rare