Definition of bissextile in English:

bissextile

adjective bɪˈsɛkstʌɪl

(of a year) having the extra day (29 February) of a leap year.
in a bissextile year, any fixed festival after February leaps forward
the year 1904 was bissextile

Origin

Late Middle English: from Latin bisextilis (annus) or bissextilis (annus) ‘the year of the bissextus’, from bissextus (from bis ‘twice’ + sextus ‘sixth’), the name given to the extra day inserted every fourth year by the Julian calendar, which was originally obtained by counting 24 February (the sixth day before the beginning of March) twice.

Definition of bissextile in US English:

bissextile

adjective

(of a year) having the extra day (29 February) of a leap year.
in a bissextile year, any fixed festival after February leaps forward
the year 1904 was bissextile

词汇	bissextile
释义	Definition of bissextile in English: bissextile adjective bɪˈsɛkstʌɪl (of a year) having the extra day (29 February) of a leap year. in a bissextile year, any fixed festival after February leaps forward the year 1904 was bissextile Origin Late Middle English: from Latin bisextilis (annus) or bissextilis (annus) ‘the year of the bissextus’, from bissextus (from bis ‘twice’ + sextus ‘sixth’), the name given to the extra day inserted every fourth year by the Julian calendar, which was originally obtained by counting 24 February (the sixth day before the beginning of March) twice. Definition of bissextile in US English: bissextile adjective (of a year) having the extra day (29 February) of a leap year. in a bissextile year, any fixed festival after February leaps forward the year 1904 was bissextile Origin Late Middle English: from Latin bisextilis (annus) or bissextilis (annus) ‘the year of the bissextus’, from bissextus (from bis ‘twice’ + sextus ‘sixth’), the name given to the extra day inserted every fourth year by the Julian calendar, which was originally obtained by counting 24 February (the sixth day before the beginning of March) twice.
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