equinoctial

• Adjectif désuet se rapportant à l'équinoxe ou au moment de l'équinoxe ; rarement utilisé en anglais moderne.

An archaic adjective relating to the equinox or the time of the equinox; now rarely used in modern English.

1. Relating to the equatorC2formal

   Pertaining to or situated near the Earth's equator.

   Équinoxial (relatif à l'équateur)

   • The equinoctial regions experience a warm climate year-round.
   • Equinoctial currents flow along the equatorial belt.
   • The ship sailed through equinoctial waters.

   Synonymesequatorial

   Antonymespolar

2. Relating to an equinoxC2formal

   Associated with the time of year when day and night are of equal length.

   Relatif à l'équinoxe

   • The equinoctial storms are common in March and September.
   • Ancient cultures celebrated equinoctial festivals.
   • The equinoctial point marks the sun's position during the equinox.

• Grand cercle de la sphère céleste équidistant des pôles célestes, également connu sous le nom d'équateur céleste.

A noun referring to the great circle on the celestial sphere that is equidistant from the celestial poles, also known as the celestial equator.

1. Celestial EquatorC2formal

   The great circle on the celestial sphere that lies midway between the celestial poles, marking the projection of Earth's equator into space.

   équateur céleste

   • The equinoctial is used as a reference for mapping stars.
   • Astronomers measure declination from the equinoctial.
   • The sun crosses the equinoctial during the equinoxes.

   Synonymescelestial equatorequinoctial circleequinoctial line