ple·​num | \ ˈple-nəm How to pronounce plenum (audio) , ˈplē- How to pronounce plenum (audio) \

Definition of plenum

1a : a space or all space every part of which is full of matter
b : an air-filled space in a structure especially : one that receives air from a blower for distribution (as in a ventilation system)
2 : a general assembly of all members especially of a legislative body
3 : the quality or state of being full

Examples of plenum in a Sentence

Recent Examples on the Web This is the remains of a bat, found in a furnace return plenum. Reuben Saltzman, Star Tribune, "Animals, skeletons, and creepy home inspection stuff 2020," 27 Oct. 2020 The committee met for its fourth plenum in Beijing this week. Ben Westcott, CNN, "China's top political body met in secret and issued an ominous message to Hong Kong," 1 Nov. 2019 At a plenum of North Korea’s Workers’ Party planned in the next few days, he is expected to describe the path in more detail. The Economist, "Disarmament talks between America and North Korea are in jeopardy," 18 Dec. 2019 The meeting this week, also called the plenum, will push efforts to sharpen China’s political defenses, likely including greater use of advanced technology to monitor and manage officials and citizens. Chris Buckley, New York Times, "As China’s Troubles Simmer, Xi Reinforces His Political Firewall," 28 Oct. 2019 Chevy used that space to enlarge the intake air plenum from 11.1 liters of volume to 14.1 liters. Dan Carney, Popular Science, "The Corvette is finally the supercar it deserves to be," 2 Jan. 2020 Kim is still widely expected to threaten a harder line approach to the United States during the Central Committee plenum and his New Year’s speech., "One of the highest decision-making bodies in North Korea, the Central Committee of the ruling Workers’ Party usually rubber-stamps any policy proposed by Kim, who rules his country with totalitarian control of the party, the military, and all other levers of power.," 31 Dec. 2019 Pressure sensors first indicate that there is fuel leaking into MarCO-B’s plenum, a pressurized chamber that holds the gas before valves route it through the thrusters. Joe Pappalardo, Popular Mechanics, "How a Small CubeSat Became the Unlikely Hero of the InSight Landing," 29 Nov. 2018 The party plenum is likely to see a strong criticism against the United States and South Korea. Washington Post, "Kim Jong Un is back on his white horse, as North Korea flags a big decision," 4 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'plenum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of plenum

1678, in the meaning defined at sense 1a

History and Etymology for plenum

New Latin, from Latin, neuter of plenus

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Cite this Entry

“Plenum.” Dictionary, Merriam-Webster, Accessed 3 Mar. 2021.

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