equinoctial point vs equinox

equinoctial point and equinox both are nouns.

Word	Noun	Adjective	Verb	Adverb
equinoctial point	Yes	No	No	No
equinox	Yes	No	No	No

As nouns, equinoctial point and equinox are synonyms defined as:

equinoctial point and equinox: (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic

equinoctial point (noun)	equinox (noun)
(astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic	(astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
	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