Cycles

diurnal: the cycle of day/night; sidereal: the motion of the Moon or any planet around the zodiac; synodic: the cycle of aspects between any two moving planets; lunation: the synodic cycle between Sun and Moon, creating Moon's phases; metonic: the 18.6 year retrograde cycle of the moon's nodes around the zodiac.
Found on http://www.encyclo.co.uk/local/20417

Cycles

Fluctuations in economic activity which impact across many sectors. The length of the business cycle, from the top of one peak to the next, varies from 5 to 10 years.
Found on http://www.encyclo.co.uk/local/20140
No exact match found