名詞 constitutionalism:

1. a constitutional system of government (usually with a written constitution)
2. advocacy of a system of government according to constitutional principles

con.sti.tu.tion.al.ism

n.（名詞）
Government in which power is distributed and limited by a system of laws that must be obeyed by the rulers.
立憲政體：其權(quán)力由統(tǒng)治者必須遵守的一個法律體系所賦予并加以限制的政府

A constitutional system of government.
立憲制度：根據(jù)憲法運行的政府體制
Advocacy of such a system.
立憲主義：擁護這種體制的主張

【引伸】
con.stitu.tionalist
n.（名詞）