equinox

English

/ˈɛkwɪˌnoks/, /ˈiːkwəˌnɑːks/

noun
Definitions
  • (astronomy) The intersection of the apparent path of the sun in the sky (the ecliptic) with the celestial equator.
  • One of the two days on which this intersection occurs each year: (for the Northern hemisphere) March 20 or 21 in the spring and September 22 or 23 in the autumn.

Etymology

Derived from Old French equinoce derived from Latin equinoxium, aequinoctium.

Origin

Latin

aequinoctium

Gloss

Timeline

Distribution of cognates by language

Geogrpahic distribution of cognates

Cognates and derived terms