![[Astronomy Answers]](../../pic/pr.gif "Astronomy Answers"){kind=small}
![[Dictionary]](../../pic/glossary.gif "Dictionary"){kind=small}
![[AnswerBook]](../../pic/book.gif "AnswerBook"){kind=small}
![[Universe Family Tree]](../../pic/tree.gif "Universe Family Tree"){kind=small}
![[Science]](../../pic/science.gif "Science"){kind=small}
![[Starry Sky]](../../pic/sterren.gif "Starry Sky"){kind=small}
![[Planet Positions]](../../pic/planeet.gif "Planet Positions"){kind=small}
![[Calculate]](../../pic/reken.gif "Calculate"){kind=small}
![[Colophon]](../../pic/copybtn.gif "Colophon"){kind=small}
\(\def\|{&}\)
The description of the word you requested from the astronomical dictionary is given below.
plural: leap years
A leap year is a year that contains one day more than ordinary years. Leap years are necessary to keep the calendar in step with the seasons.