Calippic /(?)/

Ca·lip·pic

Calippic

a.
  1. Of or pertaining to Calippus, an Athenian astronomer.

Phrases & Compounds
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.