separation of powers

Từ điển Oxford Advanced Learner 8th

the ˌseparation of ˈpowers 7 [separation of powers] BrE NAmE noun singular
the principle of the US Constitution that the political power of the government is divided between the President, Congress and the Supreme Court
compare ↑checks and balances

Culture:
The three ‘branches’ or divisions of government are the executive branch under the ↑President, the legislative branch (i.e. ↑Congress) and the judicial branch (i.e. the ↑Supreme Court). The arrangement is intended to make sure that no one branch has too much power, and this is achieved by a system of ↑checks and balances.