noun
one-party dictatorship; single-party regime
Political term for a system where only one party holds power, often with authoritarian control.
その国は一党独裁体制のもとで統治されている。
That country is governed under a one-party dictatorship.
Compound of 一党 (one party), 独裁 (dictatorship), and 体制 (system). The term is a modern political concept, likely a calque from Western political terminology.