bissextile

American  

[bahy-seks-til, -tahyl, bih-] / baɪˈsɛks tɪl, -taɪl, bɪ- /

adjective

1. containing or noting the extra day of leap year.

   The years 1980 and 1984 were both bissextile.

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noun

1. leap year.

bissextile British  

/ bɪˈsɛkstaɪl /

adjective

1. (of a month or year) containing the extra day of a leap year

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noun

1. a rare name for leap year

Etymology

Origin of bissextile

1585–95; < Late Latin bi ( s ) sextilis ( annus ) leap year, equivalent to bissext ( us ) bissextus + -ilis -ile

Example Sentences

The bissextile is known to have been used by the Mayas, Tzendals, and Quichés, and it was probably common.

From Ancient America, in Notes on American Archaeology by Baldwin, John D. (John Denison)

Mr. Schwilgué has even indicated the suppression of the secular bissextile days.

From Historical Sketch of the Cathedral of Strasburg by Anonymous

For, on account of our intercalation of one day every bissextile year, the Mexican year receded, as compared with ours, one day every four years.

From Mexico, Aztec, Spanish and Republican Vol. 1 of 2 A Historical, Geographical, Political, Statistical and Social Account of That Country From the Period of the Invasion by the Spaniards to the Present Time; With a View of the Ancient Aztec Empire and Civilization; A Historical Sketch of the Late War; And Notices of New Mexico and California by Mayer, Brantz

This rule of the bissextile year, Rome, which is destined to endure to the end of time, established with the aid of the heavenly Deity.

From The Roman History of Ammianus Marcellinus During the Reigns of the Emperors Constantius, Julian, Jovianus, Valentinian, and Valens by Yonge, Charles Duke

Every year that can be divided by four without a remainder is bissextile or leap year, with the exception that one leap year is cut off in the century.

From Amusements in Mathematics by Dudeney, Henry Ernest