See Also: epact(dictionary)

epact (iou)



epact noun. ['i:pakt] M16.
[Old & mod. French epacte from late Latin epactae pl., from Greek epactai intercalated (sc. hemerai days) fem. pl. of epaktos brought in from epagein bring in, formed as EPI- + agein lead.]
The age of the moon in days at the beginning of a calendar year. M16.
The period of about 11 days by which the solar year is longer than the lunar year; any of these days. L16.
An intercalated day or period. rare. E17.