equinox vs equinoctial point

equinox and equinoctial point both are nouns.

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

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

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

equinox (noun)	equinoctial point (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