Definition of epact in English:

epact

noun ˈiːpaktˈipækt

The number of days by which the solar year exceeds the lunar year.
闰余（阳历一年间超过阴历的日数）

Origin

Mid 16th century (denoting the age of the moon in days at the beginning of the calendar year): from French épacte, via late Latin from Greek epaktai (hēmerai) 'intercalated (days)', from epagein 'bring in', from epi 'in addition' + agein 'bring'.

Definition of epact in US English:

epact

nounˈipæktˈēpakt

1The number of days by which the solar year differs from the lunar year.
闰余（阳历一年间超过阴历的日数）
1. 1.1 The number of days into the moon's phase cycle at the beginning of the solar (calendar) year.

Origin

Mid 16th century (denoting the age of the moon in days at the beginning of the calendar year): from French épacte, via late Latin from Greek epaktai (hēmerai) ‘intercalated (days)’, from epagein ‘bring in’, from epi ‘in addition’ + agein ‘bring’.

词汇	epact
释义	Definition of epact in English: epact noun ˈiːpaktˈipækt The number of days by which the solar year exceeds the lunar year. 闰余（阳历一年间超过阴历的日数） Origin Mid 16th century (denoting the age of the moon in days at the beginning of the calendar year): from French épacte, via late Latin from Greek epaktai (hēmerai) 'intercalated (days)', from epagein 'bring in', from epi 'in addition' + agein 'bring'. Definition of epact in US English: epact nounˈipæktˈēpakt 1The number of days by which the solar year differs from the lunar year. 闰余（阳历一年间超过阴历的日数） 1.1 The number of days into the moon's phase cycle at the beginning of the solar (calendar) year. Origin Mid 16th century (denoting the age of the moon in days at the beginning of the calendar year): from French épacte, via late Latin from Greek epaktai (hēmerai) ‘intercalated (days)’, from epagein ‘bring in’, from epi ‘in addition’ + agein ‘bring’.
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