Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A substance added to a mixture to promote dispersion or to maintain dispersed particles in suspension.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry Any substance that is used to to prevent settling or clumping of particles suspended in a liquid.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

disperse +‎ -ant

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Examples

  • But what most people don't know is that the active ingredient of the toxic chemical dispersant, which is up to 60% by volume, being

    WN.com - Business News 2010

  • But what most people don't know is that the active ingredient of the toxic chemical dispersant, which is up to 60% by volume, being

    WN.com - Business News 2010

  • But what most people don't know is that the active ingredient of the toxic chemical dispersant, which is up to 60% by volume, being

    WN.com - Business News 2010

  • "dispersant" - to try to break up the oozing oil, allowing it to decompose more quickly or evaporate before washing ashore.

    msnbc.com: Top msnbc.com headlines 2010

  • a mix of chemicals collectively known as "dispersant" - to try to break up the oozing oil, allowing it to decompose more quickly or evaporate before washing ashore.

    Gazette.com : 2010

  • Ed Overton -- who is a Ph. D, a professor emeritus at LSU, and who unlike yours truly is a scientist (in analytical environmental chemistry) -- spoke to us the next day and told us that the kind of dispersant used was not only not poisonous, but also that the amount, though it sounded immense, was minuscule, given the volume of water in the Gulf of Mexico.

    Rachel Ben-Avi: Dinner at Tara 2010

  • Ed Overton; who is a Ph. D, a professor emeritus at LSU, and who unlike yours truly is a scientist (in analytical environmental chemistry); spoke to us the next day and told us that the kind of dispersant used was not only not poisonous, but also that the amount, though it sounded immense, was minuscule, given the volume of water in the Gulf of Mexico.

    Rachel Ben-Avi: Dinner at Tara 2010

  • Rather than trying to address a toxic spill with toxic "dispersant" chemicals, we should rely on greener solutions.

    Van Jones: The Gulf Will Be Beautiful Again 2010

  • Scientists at the NOAA are preparing a report on the long-term effect of dispersant which is likely to figure in negotiations between BP and Washington over compensation payments for cleaning up the environment.

    Gulf oil spill: US scientists reject talk of plumes and report 75% of slick has gone 2010

  • The Dispersants - As part of the containment effort, BP has been using a record-setting amount of what they call "dispersant".

    Shawna Vercher: 5 Hard Truths -- Florida Leaders Briefed on the Spill 2010

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