noun a leap year
adjective relating to a leap year, especially one with 366 days
In astronomy, a bissextile year is a year containing an extra day, also known as a leap year, to keep the calendar year synchronized with the astronomical year.
Bissextile is relevant in timekeeping to ensure that the calendar remains accurate in relation to the Earth's orbit around the sun.
Bissextile is used to describe the occurrence of a leap day in a calendar year, typically occurring every four years.
In literature, the term 'bissextile' may be used to describe a leap year or a year containing an extra day, such as February 29th.
Psychologists may use the term 'bissextile' when discussing calendar anomalies and their impact on individuals' perceptions of time and events.
Astronomers may refer to a 'bissextile year' when calculating celestial events and aligning calendars with astronomical phenomena.
Historians may use the term 'bissextile' when analyzing historical events and timelines that are affected by leap years.