n.
1.the solar calendar introduced in Rome in 46 b.c. by Julius Caesar and slightly modified by Augustus, establishing the 12-month year of 365 days with each 4th year having 366 days and the months having 31 or 30 days except for February
Idiom of the Day
thick-skinned
to be not easily upset or hurt, to be insensitive
The salesman is thick-skinned and is never bothered when he loses a sale or receives criticism.