Definition of "quadrumvirate" []

• A group of four people joined in authority or office, especially a government of four people: "[Chiang Kai-shek] was . . . the last survivor of the World War II quadrumvirate that included Roosevelt, Churchill and Stalin” ( Newsweek). (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "When the revolutionary quadrumvirate split into two factions -- Villa -"
• "Mr. Gilgan, so Cowperwood knew, was only one of a new quadrumvirate setting out to rule the city, but he pretended to believe that he was the last word — an all power and authority — after the fashion of McKenty."
• "Naturally, the minor speculators throughout the city — those who had expected to make a fortune out of this crash — raged and complained, but, being faced by an adamantine exchange directorate, a subservient press, and the alliance between the big bankers and the heavy quadrumvirate, there was nothing to be done."