Dictionary
Dictionary
Bissextile — definition & meaning
Word Type Definition Bissextile n. Leap year; every fourth year, in which a day is added
to the month of February on account of the excess of the tropical year
(365 d. 5 h. 48 m. 46 s.) above 365 days. But one day added every four
years is equivalent to six hours each year, which is 11 m. 14 s. more
than the excess of the real year. Hence, it is necessary to suppress
the bissextile day at the end of every century which is not divisible
by 400, while it is retained at the end of those which are divisible by
400.
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