BREVIARY n.
he daily public or canonical prayers of the Roman Catholic or of the Greek Church for the seven canonical hours, namely, matins and lauds, the first, third, sixth, and ninth hours, vespers, and compline; -- distinguished from the missal.
CALIPPIC 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.