dis·​per·​sant | \ di-ˈspər-sənt How to pronounce dispersant (audio) \

Definition of dispersant

: a dispersing agent especially : a substance for promoting the formation and stabilization of a dispersion of one substance in another

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Other Words from dispersant

dispersant adjective

Examples of dispersant in a Sentence

Recent Examples on the Web Police in dozens of cities have used teargas as a crowd dispersant since George Floyd died under a policeman’s knee in Minneapolis on May 25. Matt Sledge, NOLA.com, "This New Orleans proposal would restrict -- but not ban -- police use of tear gas," 10 Sep. 2020 Too much of a specific dispersant can affect catalyst performance and reduce fuel economy. Paul Weissler, Popular Mechanics, "How to Pick the Right Motor Oil for Your Car," 31 Aug. 2020 Past administrations have waived environmental reviews after disasters that require real-time decisionmaking, like managing debris after Hurricane Katrina or deploying oil dispersant after the Deepwater Horizon oil spill. Scott Waldman, Scientific American, "Trump Waives Environmental Reviews, Vulnerable Communities Could Bear the Brunt," 5 June 2020 Sunlight impairs dispersants' ability to break up oil into droplets. Tristan Baurick, NOLA.com, "Sunlight weakens chemical dispersants used to cleanup oil spills, research shows," 25 Apr. 2018 But the heavy use of dispersants during Deepwater Horizon stirred controversy both over its effectiveness and biological effects. Kevin Mcgill And Matthew Brown, Houston Chronicle, "10 years after BP spill: Oil drilled deeper; rules relaxed," 21 Apr. 2020 The theory is that without the use of dispersants, the oil would have surfaced and been dealt with. al, "10 years after Deepwater Horizon disaster: Along Alabama’s Gulf Coast, questions, and work, go on," 19 Apr. 2020 But the heavy use of dispersants during Deepwater Horizon stirred controversy both over its effectiveness and biological effects. Author: Kevin Mcgill And Matthew Brown, Anchorage Daily News, "10 years after BP spill: Oil drilled deeper; rules relaxed," 18 Apr. 2020 In both lab experiments and fieldwork after Deepwater Horizon, scientists found that exposure to hydrocarbon compounds in oil and dispersants used to break down slicks during the spill harmed individual fish. F. Joel Fodrie, The Conversation, "Coastal fish populations didn’t crash after the Deepwater Horizon spill – why not?," 16 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dispersant.' 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 dispersant

1941, in the meaning defined above

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Time Traveler for dispersant

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The first known use of dispersant was in 1941

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Statistics for dispersant

Last Updated

24 Sep 2020

Cite this Entry

“Dispersant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dispersant. Accessed 22 Oct. 2020.

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