Science / Tides and Currents / Node Cycle: Period of approximately 18.61 Julian years required for the regression of the Moon's nodes to complete a circuit of 360° of longitude. It is accompanied by a corresponding cycle of changing inclination of the Moon's orbit relative to the plane of the Earth's Equator, with resulting inequalities in the rise and fall of the tide and speed of the tidal current.
Cycle Verb Synonyms: slow, methodical, careful, unhurried, paced, measured, regular, even, steady, sure, unhesitating, unfaltering, confident
Cycle Noun Synonyms: round, rotation, circle, course, series, sequence, run, succession, pattern
Science / Tides and Currents / Lunar Cycle: An ambiguous expression which has been applied to various cycles associated with the Moon's motion. See Callippic cycle, Metonic cycle, node cycle, and synodical month. MORE
Science / Astrology / Node: The point of intersection of a planet's orbit and the ecliptic. MORE