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ALL meanings of epact

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  • noun epact The number of days by which the solar year differs from the lunar year. 1
  • noun epact the difference in time, about 11 days, between the solar year and the lunar year 0
  • noun epact the number of days between the beginning of the calendar year and the new moon immediately preceding this 0
  • noun epact the difference in time between the calendar month and the synodic month 0
  • noun epact the period of about eleven days by which the solar year exceeds the lunar year of twelve months 0
  • noun epact the age, in days, of the calendar moon on the first of the year 0
  • noun epact the time (number of days) by which a solar year exceeds twelve lunar months; it is used in the calculation of the date of Easter. 0
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