Calippic
Pronunciation : Ca*lip"pic
Part of Speech : a.
Definition : Defn: Of or pertaining to Calippus, an Athenian astronomer. Calippic period, a period of seventy-six years, proposed by Calippus, as an improvement on the Metonic cycle, since the 6940 days of the Metonic cycle exceeded 19 years by about a quarter of a day, and exceeded 235 lunations by something more.
Source : Webster's Unabridged Dictionary, 1913