intercalation

A noun referring to the act of inserting an additional day, month, or period into a calendar system to align it with astronomical cycles.

• 🇷🇺Вставка дополнительного дня, месяца или периода в календарную систему для согласования с астрономическими циклами.

1. Calendar insertion C2 formal

   The insertion of an extra day, month, or other period into a calendar to align it with astronomical cycles.

   • The intercalation of a leap day every four years keeps the calendar synchronized with the solar year.
   • Ancient calendars often required intercalation to correct seasonal drift.
   • The intercalation of a 13th month in some lunar calendars is a complex process.

   🇷🇺Вставка в календарь

   Synonyms: embolism

• intercalations plural form
• intercalations' possessive plural form
• intercalation's possessive singular form