Word Study
equinoctial line |
equinoctial point |
equinoctial storm |
equinoctial year |
equinoctially |
equinox
| equinumerant
| equip
| equipage
| equipaged
| equiparable
equinox
WORDNET DICTIONARY
Noun equinox has 2 senses
- equinox(n = noun.time) Array - 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; Array is a kind of cosmic time
- equinox(n = noun.location) equinoctial point - (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic; Array is a kind of celestial point
has particulars: march equinox, spring equinox, vernal equinox, autumnal equinox, fall equinox, september equinox
Derived form adjective equinoctial2
has particulars: vernal equinox, autumnal equinox
CIDE DICTIONARY
OXFORD DICTIONARY
equinox, n.
1 the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length.
2 = equinoctial point.
1 the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length.
2 = equinoctial point.
Idiom
autumn (or autumnal) equinox about 22 Sept. spring (or vernal) equinox about 20 March.
Etymology
ME f. OF equinoxe or med.L equinoxium for L aequinoctium (as EQUI-, nox noctis night)
THESAURUS
equinox
aphelion, apogee, astronomical longitude, autumnal equinox, celestial equator, celestial longitude, celestial meridian, circle, colures, ecliptic, equator, equinoctial, equinoctial circle, equinoctial colure, galactic longitude, geocentric longitude, geodetic longitude, great circle, heliocentric longitude, longitude, meridian, orbit, perigee, perihelion, period, small circle, solstice, solstitial colure, summer solstice, trajectory, vernal equinox, winter solstice, zodiac, zone
For further exploring for "equinox" in Webster Dictionary Online
