American Heritage Dictionary
(3)
Century Dictionary
(2)
GNU Webster's 1913
(2)
WordNet
Elsewhere on the web
The Hysek X-RAY Perpetual Calendar features months and bissextile leap year indication at 12 o†™ Clock, date indication at 3 O†™ clock, day counter at 9 o†™ clock and second GMT indication at 6 o†™ clock.— Wrist Dreams
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.— Amusements in Mathematics
Next bissextile year Acura need make a— xml's Blinklist.com
This year is a year bissextile,— The Wonder-Working Magician
The bissextile is known to have been used by the Mayas,— Ancient America, in Notes on American Archaeology

American Heritage Dictionary (1)
Century Dictionary (1)
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