🇬🇧 en it 🇮🇹

bissextile adjective

  /bɑɪˈsɛks.tɑɪl/ , /bɑɪˈsɛks.təl/ , /bɪˈsɛks.taɪəl/ , /bɪˈsɛks.təl/ , /bɪˈsɛkstɪl/<a:UK><ref:<<name:oed>>>
  • Having an intercalary day, particularly the quadrennial leap day of the Julian and Gregorian calendars traditionally placed as a "second sixth" day before March 1st.
 bisestile
Wiktionary Links