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Webster's New World College Dictionary » leap year
leap year
leap year definition
leap year
a year of 366 days in the Gregorian calendar, occurring every fourth year: the additional day, Feb. 29, makes up for the time lost annually when the approximate 365-day cycle is computed as 365 days: a leap year is a year whose number is exactly divisible by 4, or, in case of the final year of a century, by 400
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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