Protestant ascendancy
noun
1- historical the domination by the Anglo-Irish Protestant minority in Ireland, especially in the 18th and 19th centuries〈史〉新教宗主地位（尤指18、19世纪在爱尔兰的英格兰和爱尔兰新教少数派的统治）。
1.1
- the members of the landed aristocracy comprising this minority新教贵族地主。