1. [ noun ] the solar calendar now in general use, introduced by Pope Gregory XIII in 1582 AD to correct an error in the Julian calendar by suppressing 10 days, making Oct 5 be Oct 15, and providing that only centenary years divisible by 400 should be leap years
Synonyms: New_Style Gregorian_calendar
Related terms: solar_calendar church_calendar May June April November September February March August December July October January Gregorian_calendar_month