Definition of "diarchy" []

• Government by two joint rulers. (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.

• "While the majority of Russians expect Putin to assume the presidency again, political experts say the ruling tandem, which has also become known as a diarchy, will likely continue with the current arrangement of roles."
• "Australia's defence apparatus has a unique "diarchy" structure, whereby the white-collar Defence staff and the uniformed ADF both report directly to the Minster."
• ""diarchy," or division of governmental responsibility between councillors nominated by the British executive and ministers chosen from elective legislative bodies."