Hypertext Webster Gateway: "Calippic"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Calippic \Ca*lip"pic\, a.
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.
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