English Dictionary

leap year

IPA（発音記号）

/ˈliːpˌjɪə/

名詞

A year in the Julian or Gregorian calendars with an intercalary day added to February, used to adjust for the extra hours of the solar year; a 366-day year.

日本語の意味

うるう年：ユリウス暦またはグレゴリオ暦において、2月に1日が加算され、通常の年（365日）に対し366日となる年で、太陽年の不足している時間を調整するために設けられる年

Because my birthday falls on February 29, I celebrate it only in a leap year.

私の誕生日は2月29日なので、うるう年にしか祝えません。

意味（1）

A year in the Julian or Gregorian calendars with an intercalary day added to February, used to adjust for the extra hours of the solar year; a 366-day year.

The additional day which occurred every fourth year [after the Julian Reform] was given to February, as being the shortest month, and was inserted in the calendar between the 24th and 25th day. February having then twenty-nine days, the 25th was the 6th of the calends of March, sexto calendas; the preceding, which was the additional or intercalary day, was called bis-sexto calendas,—hence the term bissextile, which is still employed to distinguish the year of 366 days. The English denomination of leap-year would have been more appropriate if that year had differed from common years in defect, and contained only 364 days. In the ecclesiastical calendar the intercalary day is still placed between the 24th and 25th of February; in the civil calendar it is the 29th.

意味（2）

(inexact) Any other year featuring intercalation, such as a year in a lunisolar calendar with 13 months instead of 12, used to maintain its alignment with the seasons of the solar year.

leap years （ plural ）