noun
Refers to a political arrangement where three individuals share power, especially in ancient Rome. Used in historical and political contexts.
ローマの三頭政治は、カエサル、ポンペイウス、クラッススによって始まった。
The Roman triumvirate was started by Caesar, Pompey, and Crassus.
From 三 (three) + 頭 (head) + 政治 (politics), a calque of English 'triumvirate' or directly from Latin 'triumviratus'.