leap year Meaning, Definition & Usage
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noun in the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400
intercalary year; bissextile year; 366 days.
WordNet
Leap" year`
Definitions
. Bissextile; a year containing 366 days; every fourth year which leaps over a day more than a common year, giving to February twenty-nine days. See Bissextile .✍ Every year whose number is divisible by four without a remainder is a leap year, excepting the full centuries, which, to be leap years, must be divisible by 400 without a remainder. If not so divisible they are common years. 1900, therefore, is not a leap year.
