Julian calendar

noun

Ju·​lian calendar ˈjül-yən- 

: a calendar introduced in Rome in 46 b.c. establishing the 12-month year of 365 days with each fourth year having 366 days and the months each having 31 or 30 days except for February which has 28 or in leap years 29 days compare gregorian calendar

Word History

Etymology

Latin julianus, from Gaius Julius Caesar

First Known Use

1696, in the meaning defined above

Kids Definition

Julian calendar

noun

Ju·​lian calendar ˌjül-yən- 

: a calendar introduced in Rome in 46 b.c. establishing the 12-month year of 365 days with each fourth year having 366 days and the months each having 31 or 30 days except for February which has 28 or in leap years 29 days compare gregorian calendar