( n. )
One of the two points where the orbit of a planet, or comet, intersects the ecliptic, or the orbit of a satellite intersects the plane of the orbit of its primary.
( n. )
One of the two points where the orbit of a planet, or comet, intersects the ecliptic, or the orbit of a satellite intersects the plane of the orbit of its primary.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012