- Astronomy a great circle on the celestial sphere representing the sun's apparent path during the year, so called because lunar and solar eclipses can only occur when the moon crosses it【天文】黄道。
- of an eclipse or the ecliptic（日、月等）食的; 黄道的。
词源
late Middle English: via Latin from Greek ekleiptikos, from ekleipein 'fail to appear' （see ECLIPSE）.