from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A year in the Gregorian calendar having 366 days, with the extra day, February 29, intercalated to compensate for the quarter-day difference between an ordinary year and the astronomical year.
- noun An intercalary year in a calendar.
from The Century Dictionary.
- noun A year containing 366 days, or one day more than an ordinary year; a bissextile year. See
from the GNU version of the Collaborative International Dictionary of English.
- noun Bissextile; a year containing 366 days; every fourth year which
leapsover a day more than a common year, giving to February twenty-nine days. See bissextile.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun In the
Gregorian calendar, a yearhaving 366 daysinstead of the usual 365, with the extra day added to compensate for the fact that the Earth rotatesapproximately 365.25 times for each revolutionit makes around the Sun.
- noun In the
Jewish calendaror other lunisolarcalendars, a year having 13 monthsinstead of 12, with the extra month added because 19 solar years is approximately 19*12+7 lunar months.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun in the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400
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