Metemptosis
Pronunciation : Met`emp*to"sis
Part of Speech : n.
Etymology : [NL., from Gr. (Chron.)
Definition : Defn: The suppression of a day in the calendar to prevent the date of the new moon being set a day too late, or the suppression of the bissextile day once in 134 years. The opposite to this is the proemptosis, or the addition of a day every 330 years, and another every 2,400 years.
Source : Webster's Unabridged Dictionary, 1913